What term is used for the electrons in the outermost shell or energy level

Answers

Answer 1

Answer:

Valence Electrons

Explanation:

Answer 2

Answer:

Valence

Explanation:

The outermost shell are the valence electrons


Related Questions

GIVING BRAINLY, FOLLOW, 5 STARS AND HEARTS
which of the following is NOT a characteristic of hot water heating systems? ​

Answers

Answer:

The one on the top,'' As the water cool, it is returned to the boiler where it is heated,''

Explanation:

Which of the following atoms has the smallest atomic radius?
A. F
B. Li
C. C
D. Be

Answers

The answer would be B.) Li

Answer:

A) F

It has the smallest atomic radius.

Which of the following statements are incorrect?
A. A sodium atom has a smaller radius than a potassium atom.
B. A neon atom has a smaller radius than an oxygen atom.
C. A fluorine atom has a smaller first ionization energy than an oxygen atom.
D. All are statements are incorrect

Answers

b is the answer because oxyen atom has a smaller radius

Answer: B

Explanation:

If 0.484J of heat is added to 0.1372g of water, how much will the temperature increase?

0.263 °C
0.927 °c
0.843 °C
0.460 °C

Answers

Answer:

ΔT = 0.843 °C

Explanation:

Given data:

Heat added = 0.484 J

Mass of water = 0.1372 g

Temperature increase = ΔT = ?

Solution:

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

Specific heat capacity of water is 4.184 j/g.°C

Now we will put the values in formula.

0.484 j = 0.1372 g × 4.184 j/g.°C× ΔT

0.484 j = 0.574j/°C× ΔT

ΔT = 0.484 j / 0.574j/°C

ΔT = 0.843 °C

HELP!
A. W
B. X
C. Y
D. Z

Answers

Answer:

B

Explanation:

what is S oxidation number

Answers

the answer to you question is -2

I will pick the brainiest answer! Thanks! :)

1. What is volume displacement? Why would you use this method?

2. What is density? What happens to things that are denser? What happens if they are less dense?

Answers

Answer:

1. The volume of displaced fluid is equivalent to the volume of an object fully immersed in a fluid or to that fraction of the volume below the surface of an object partially submerged in a liquid. The weight of the displaced portion of the fluid is equivalent to the magnitude of the buoyant force.

Why would you use this method?

So it can be used to accurately measure the volume of the human body and other oddly shaped objects by measuring the volume of fluid displaced when the object is submerged.

2. Density, mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre.

What happens to things that are denser?

Students should realize that if an object weighs more than an equal volume of water, it is more dense and will sink, and if it weighs less than an equal volume of water, it is less dense and will float.

What happens if they are less dense?

The density of an object determines whether it will float or sink in another substance. An object will float if it is less dense than the liquid it is placed in. An object will sink if it is more dense than the liquid it is placed in.

What is a rule for determining the mass number of an atom or ion?

Answers

Answer:

The mass number of the atom is equal to the sum of the number of protons and neutrons in the nucleus

Explanation:

Each proton and each neutron weigh one amu( atomic mass unit), adding together the neutrons and protons and multiplying by 1 amu you get the mass of an atom

What is the formula for mass number?

Answers

Answer:

the formula for mass number is "mass number = protons + neutrons".

To pass a test with 15 questions how many can I get wrong?

Answers

Answer:

You can get 7 answers wrong.

Explanation:

Let's calculate the average

[tex]\frac{15}{2} \\\\=7.5[/tex]

So if you correctly answer 8 -15  (7.5 is approximated to 8 )questions correctly you will pass.

So you can get 7 answers wrong.

The first noble gas with a Lewis Structure with 8 dots is

A. Ar
B. Kr
C. He
D. ne

Answers

Answer:

C) He

Explanation:

Helium is one of the noble gases and contains a full valence shell. Unlike the other noble gases in Group 8, Helium only contains two valence electrons.

Consider the equation:

Ca+O2→CaO

What needs to be done in order to balance the equation?


Place a 2 in front of the Ca and the CaO.

Place a 2 in front of the O2 and the CaO.

Place a 2 in front of the CaO only.

Place a 2 only in front of the Ca.

Answers

the first one would be the best answer

Using dimensional analysis, how many kilometers are there in 34 inches?

Answers

Answer:

There are many ways to figuring this out: you could use a ruler, a calculator or scrap paper.

Explanation:

This is not an actual flat out answer, but it’s helpful methods to getting the answer the next time you are stuck. Hope you are having a nice day. Bless your heart and soul.

Help! I am in a hurry! Will get brainliest if correct!

Answers

Answer:

nonmetel

Explanation:

Answer:

Its a non-metal

Explanation:

Elements that tend to gain electrons to form anions during chemical reactions are called non-metals. These are electronegative elements. They are non-lustrous, brittle and poor conductors of heat and electricity (except graphite). Non-metals can be gaseous, liquids or solids.

A solid is composed entirely of xenon atoms. What type of solid is it?
a) ionic
b) metallic
c) covalent network
d) atomic
e) molecular
f) amorphous

Answers

Answer:

ionic

Explanation:

xenom atoms are too large to move in the crystals without first associating with two oxygen ion vacancies and one uranium ion vacancy

Why are supergiant so bright?

Answers

Because supergiants are so massive, the core temperature gets much hotter than in giants, so supergiants can fuse elements heavier than hydrogen and helium. But to support their tremendous mass, supergiants burn up their fuel much more quickly.

Answer:

because the core tempature gets much hotter.

Explanation:

so supergiants can fuse elements heavier than hydrogen and helium. But to support their tremendous mass, supergiants burn up their fuel much more quickly.

Which information best supports the idea that the universe began with rapid expansion?
O Measurements of cosmic microwave background radiation
O Measurements of rates of decay
O Calculation of the temperature and brightness of stars
Calculations of the distance from the sun to each planet

Answers

bbbbb x sidisjeiiwkwnsiwowownsxjid i’m so sorry but i need help in this one class i’m trying to get answers to hope you understand
Answer

I believe it’s A.

Explanation

Because the cosmic microwave background (CMB) is thought to be leftover radiation from the Big Bang, or the time when the universe began


The Cosmic Microwave Background radiation, or CMB for short, is a faint glow of light that fills the universe, falling on Earth from every direction with nearly uniform intensity.

Emma draws a sketch of what happens to light as it moves through air and then into a tank of water. describe what happens to the speed of light as it enter the water.
Answer if you know, if you don't move on please! If you don't know comment not answer. Thank you!!

Answers

Answer:

The speed of light becomes slower in denser medium which is water in this case.

Explanation:

We know the lens law of Refraction which states

[tex]\frac{Sin(i)}{Sin(r)} =[/tex]  Refractive index of second medium /Refractive index of the first     medium

= Velocity of light in medium 1 (V1)/ velocity of light in medium 2 (V2)

When light rays fall from air medium into water which is a denser medium bending of light or change in the direction of light occurs which is knows as Refraction.

When refraction occurs speed of the light rays are also varied as we can see it from the Lenz's Law. suppose two light rays parallel to each other falling on the air-water interface at an angle , the first ray will reach the interface and bend about the normal and then the second ray. We also observe when light enters denser medium the speed of light becomes slower, also the bending of light when going from rarer to denser it bends towards normal of the surface and when it move from denser to rarer medium it moves away from the normal to the surface.

Isopentyl acetate is the molecule largely responsible for the aroma and taste of bananas. It is made up of carbon, hydrogen, and oxygen. Combustion of a 3.256-g sample of isopentyl acetate produces 7.706 g CO2 and 3.156 g H2O. Using these results, what is the correct empirical formula for isopentyl acetate?

Answers

Answer:

Explanation:

7.706 g of CO₂ will contain 12 x 7.706 / 44 g of C

= 2.1 g of C .

This will be contained in 3.256 g of isopentyl acetate

3.156 g of H₂O will contain 2 x 3.156 / 18 g of H

= .351 g of H

This will be contained in 3.256 g of isopentyl acetate

Rest will be oxygen

amount of oxygen in 3.256 g of isopentyl acetate

= 3.256 - ( 2.1 + .351 )

= .805 g

ratio of C , H , O in isopentyl acetate

= 2.1 g : .351 g : .805 g

2.1 / 12 : .351 / 1 : 0.805 / 16 ratio of moles

= .175 : .351 : .05  ratio of moles

= 3.5 : 7.02: 1

= 7 : 14 : 2

empirical formula of  isopentyl acetate

= C₇ H₁₄ O₂ .

How much eat is absorbed when 50.0g of water changes from 25.0 Celsius to 37.0 Celsius?

Answers

27 I think beacuse if you subtract
4.186 j/g. X 50g x (37-25) =
2,511 joules or 2.5 kilo joules
Or 2.38 btu


4.186 is specific heat of water per gram per deg C at sea level
Times mass of 50 grams
Times delta T of the water


2530 joules when cross checked by plugging into an online calculator

7th grade help me plzzzzzzzz

Answers

Answer:

1. Metals

2. Solid, gas, liquid

Explanation:

For #1:

The majority of elements in the periodic table are classified as metals. The transition metals lie in the center of the table, spanning groups three through 12. These elements are solid at room temperature, except mercury, and have the metallic color and malleability expected of metals.

Hope this helps :)

221 A grocery shop has different types of fruit: one box contains 10 mangos, another
contains 7 avocados and the third box contains 5 lemons.
The same shop has 20% organic food. 50% inorganic food, and 30% of the things they sell
are juices.
3 marks)
A) Represent the types of fruit in bar graph.
B) Represent the sales in pie graph.

Answers

Answer:

A) Please see the required bar graph attached

B) Please see the required pie graph attached

Explanation:

The given data are;

The number of each fruit in each box are;

First box contains 10 mangoes

Second box contains 7 avocados

Third box contains 5 lemons

The percentage of the things they sell are;

Organic food = 20%

Inorganic food = 50%

Juices = 30%

A) The bar graph is plotted with Microsoft Excel

The height of each column is equivalent to the number of fruit in the box

Each column represents a box of fruit

B) The pie graph (chart) is generated with Microsoft Excel

The steps to draw the pie chare are;

1) Draw a circle

2) Partition the circle into segments proportional to each percentage from the center of the circle as follows;

The sum of angles at the center of the circle = 360°

The angle of the segment that will represent the 20% organic food in the pie chart = 20/100 × 360° = 72°

Therefore, the segment representing organic food will have an angle of 72° at the center of the circle

Similarly, the segment representing inorganic food will have an angle of  50/100 × 360° = 180° at the center of the circle

The segment representing juices will have an angle of  30/100 × 360° = 108° at the center of the circle.

The element magnesium is a
O Group 12, Transition Metal
O Period 3, Alkaline Earth Metal
Period 4. Alkali Metal
O Period 4, Halogen

Answers

Group 2
Period 3
Alkaline Earth Metal

Examine the layers of rock. How does layering provide evidence for determining geologic age?

Answers

Well I can’t see the rocks but, to determine the relative age of different rocks, geologists start with the assumption that unless something has happened, in a sequence of sedimentary rock layers, the newer rock layers will be on top of older ones.



Hope this helped! <3

Answer:

the deeper you go down in to the rock the older the fossils get.

Explanation:

layering can provide evidence because the deeper you go down in to the rock the older the fossils get. So when the scientists go in to the rock they can say what animals lived in that time and what animal was the oldest.

How can electronegativity be used to explain the reaction we see in terms of the numbers and types of bonded being formed in lithium?

Answers

Explanation:

Lithium is an electropositive element that readily loses electrons.

Oxygen is electronegative and it will readily accept electrons.

 Due to this significant electronegativity differences between the two species they form electrovalent or ionic bonds between them.

  2atoms of Li lose two electrons:

      Li  →  Li²⁺ + e⁻

             Lithium isoelectronic with helium

 For oxygen;

      O + 2e⁻   →  O²⁻

                          Oxygen is isoelectronic with Neon

Two ions of the lithium combines with the oxygen to form the bond;

                   4Li + O₂  →  2Li₂O

The electrostatic attraction between the two ions forms the ionic bond

define open and closed circuit​

Answers

Answer:

An open circuit is one where the continuity has been broken by an interruption in the path for current to flow. A closed circuit is one that is complete, with good continuity throughout. A device designed to open or close a circuit under controlled conditions is called a switch.

Open circuit allows current to pass through
Closed circuit doesn’t allow current to pass

Which is the best description of a molecule?

Answers

Answer:

A molecule is the smallest particle in a chemical element or compound that has the chemical properties of that element or compound. Molecules are made up of atoms that are held together by chemical bonds. These bonds form as a result of the sharing or exchange of electrons among atoms.

Answer:

C

Explanation:

Lithium has two isotopes, lithium-6 weighing 6.015 amu (7.5% abundance), and lithium-7
weighing 7.016 amu (92.5% abundance). What is the atomic mass of lithium?
with calculations

Answers

Answer:

The answer is 6.941 but I dont really have the explanation

Explanation:

The atomic mass of lithium will be 6.9458 amu.

What is Atomic Mass ?

The mass of an atom of a chemical element expressed in atomic mass units.

It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes.

Calculation :

Consider 10000 atoms of Li ;

742 of them would have mass 6.02.9258 of them would have mass 7.02

.

Hence,

The total mass of these 10000 Li atoms would be ;

(742 × 6.02) + (9258 × 7.02) = 69458

∴ 1 Li atom on average would have mass =  69458 / 10000 = 6.9458 amu

Therefore, The atomic mass of lithium will be 6.9458 amu.

Learn more about Atomic Mass here ;

https://brainly.com/question/17067547

#SPJ2

How do slab pull forces affect plate motion? Choose the correct answer.


Uplifted mantle causes plates to move apart.

Convection currents drive the plate downward to move it.

Earthquakes break the crust into smaller plates to make motion easier.

The weight of the subducted plate produces a force to continue moving the plate.

Answers

Answer:

The weight of the subducted plate produces a force to continue moving the plate.

Explanation:

How many number of oxygen molecules are required to produce 0.22 g of CO2 according to the reaction?
c+o2=co2​

Answers

The number of moles for co2=mass(g)/molar mass
n=.22/44=.005 mole of CO2
from the equation we see the relationship between the moles of co2 and O2 and we find that they have the same number of moles
So we need .005mole of O2
Multiple the number of moles with avogadro’s number to know the number of O2molecules
.005x6.022 x10^23
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According to the National Institute of Health, atrial fibrillation occurs if rapid, disorganized electrical signals causing the heart's two upper chambers, called the atria, to fibrillate. The term "fibrillate" means to contract very fast and irregularly. In atrial fibrilation, blood pools in the atria. It isn't pumped completely into the heart's two lower chambers, called the ventricles. As a result, the heart's upper and lower chambers don't work together as they should.Based on the passage above, how will atrial fibrillation affect blood pressure? It will lower blood pressure because less blood is pumped per beat. It will increase blood pressure because the heart is contracting faster. It will increase blood pressure because the atria fill fully with blood. It will lower blood pressure because blood volume drops in the atria. Which of the following does not show the Commutative Property of Addition or Multiplication? a. xy 9 = xyb. x + y = y + xc. yx = xyd. 3 + y = y + 3 What is the first step an interdisciplinary team should take when establishing a procedure What is an equation of the line that passes through the points (4,1) and (8, 5)? Put your answer in fully reduced form.HELP PLS You are a farmer in ancient Mesopotamia and you grow 500 bushels a year. Your family uses 300 bushels a year. What do you have?a.a surplus of 200 bushelsc.a surplus of 500 bushelsb.a surplus of 300 bushelsd.a surplus of 800 bushels Please select the best answer from the choices providedABCD What is mA?Enter your answer in the box. Help plssssssssssssssss HELP ME ASAP PLEASEEEEEEEE An exterior angle of a triangle has a measure of 80, and one of the remote interior angles has a measure of 20. Write and solve anequation to find the measure of the other remote interior angle.Enter the correct answers in the boxes.Equation:X= The ___ is the set of outputs for a function. Advantages and diadvantages with referendum What is polarization?Communication wise Enter the decimal represented by the shaded square.The shaded square represents When Patricia sells her Apple stock at the same time that Brian purchases the same amount of Apple stock, Apple receives:_____________. a. nothing. b. only the market value of the common stock. c. the dollar value of the transaction. d. the dollar amount of the transaction, less brokerage fees. A hydrocarbon contains what did most rich southern planters do with their wealth? Help please, question attached [tex]4 \sqrt{32 - 3 \sqrt{50 - 4 \sqrt{18 + 5 \sqrt{108} } } } [/tex] WWhat is the prime factorization of 72? (1 point)O 1x2x4x9O 22x320 22x33O 2x32 Which one is not a significant geographic feature of Asia? The Gobi DesertThe Ganges RiverThe HimalayasThe Atacama Desert