what is an atom plz answer to get 10 points +brainliest

Answers

Answer 1
atom, smallest unit into which matter can be divided without the release of electrically charged particles. It also is the smallest unit of matter that has the characteristic properties of a chemical element. As such, the atom is the basic building block of chemistry.
Answer 2
An atom is the smallest unit of ordinary matter that forms a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are extremely small, typically around 100 picometers across

Related Questions

Answer the following question in 1-2 complete sentences. What factors can influence the properties of glass, which include its ability to transmit, reflect, or absorb light, or to be transparent?.

Answers

What factors can influence the properties of glass, which include its ability to transmit, reflect, or absorb light, or to be transparent?

Answer · 47 votes

The properties can be influenced by many factors. The most common are the shape of the object, the lighting where the object is located, the environment (colors, shapes, density of other objects, etc.), and the viewing angle of the observer.

Using the “rule of 8” explain why carbon is the backbone of organic molecules

Answers

Answer:

Carbon has 4 valence electrons (electrons that are used in bonding), and therefore it can make 4 bonds which is the most one can (other than some exceptions, but in general it is the most). It wants to make 4 bonds so it can reach a full octet of 8 elections, hence the rule of 8.

Explanation:

Answer:

I suggest you See Explanation. But tldr: Carbon forms four bonds with no lone pairs.

Explanation:

By "rule of 8" I am assuming you mean "Octet Rule." In case you don't know, the octet rule (or rule of 8) is a rule referring to the maximum number of valence shell electrons that an atom can hold: 8 electrons. However, there are exceptions to this: octet-deficient and expanded octet atoms. Octet-deficient atoms follow what is known as the duet rule (or rule of 2), as seen in the case of H and He, or have have a capacity of up to 6 electrons in their valence shell, as seen in the case of B and Be. Expanded octets contain 10, 12, or even 14 electrons and occur in Period 3 elements and after. (It was previously assumed that this was due to d-orbital hybridization but that hypothesis has been disproven and currently an explanation regarding expanded octets doesn't exist. Yet another Nobel Prize worthy concept to solve when you have free time!)

Anyways, how does this all apply to Carbon being the backbone of the millions of organic molecules? Well, carbon follows the octect rule. Unlike duet rule atoms, it is not limited to one bond with another atom. Neither does it hold many lone pairs to itself nor form over four bonds at once causing a decrease in stability. No, Carbon forms four bonds with no lone pairs and has perfect stability in terms of both formal charge and octect rule in many of its structures. Its capacity to bond to up to 4 atoms without comprimising stability is the reason why carbon is the backbone of organic molecules. If you feel this answer helped, gimme brainliest, have a great day! :)

please help me on this question plizzźzz

what is the green colouring matter found in plants called​

Answers

Answer:

the answer is chlorophyll....

Explanation:

if u need it's purpose just let me know

Explanation:

the green colouring matter found in plants is called chlorophyll.

What is the excess reactant of water?

Answers

Answer:

Hydrogen

Explanation:

An example of this can be In this example, hydrogen is the limiting reagent and oxygen is the excess reagent. The amount of product formed is limited by the amount of hydrogen.

Describe in short about the paper chromatography. ​

Answers

Answer:

Paper chromatography is a method used to distinguish or separate coloured substance mixtures.

In the image, take an example of colured chemical placed in a glass beaker. If a paper is placed in that chemical, coloured spots are separated and displayed on the chromatogram.

It was founded in 1944 A.D by a scientist called Erwin Cargaff.

what is the oxidation number of sulfur in the sulfate ion?

Answers

Answer:

+6

Explanation:

Which best describes an element?
a pure substance
a type of a mixture
a pure compound
an impure substance

Answers

An element is a pure substance

Answer:

An impure substance

Explanation:

Substance means: hard surface example: salt,corals,coal.

BEBE
It is believed the major reason for the decline in amphibian species is
a. death through disease
b. changing reproductive habits
mutation
d. climate change
C.
Please select the best answer from the choices provided


Answers

Answer:

Climate change is the answer

Explanation:

They have to adapt and if the climate changes they no longer can

Answer:

climate change

Explanation:

edge 2022

At the end of seafloor spreading, where does the molten rock solidify?

Answers

Answer:

As the two plates move apart from each other, which often occurs at a rate of several centimetres per year, molten rock wells up from the underlying mantle into the gap between the diverging plates and solidifies into new oceanic crust. Spreading centres are found at the crests of oceanic ridges.

Explanation:

I found this answer by taking notes in class

Answer:

0k HI! so the answer is A

Explanation:

hope is helpful

(BRAINLIEST AND 50 POINTS) no links
Name one organ system that isn't the Nervous system, Respiratory system, Skeletal system, and Circulatory system, and explain how can that system help keep you safe during a forest fire.

Answers

Answer:

Endocrine system

Explanation:

Endocrine system influences the function of the body's hormones via internal glands that are secreted into the circulatory system.

in a forest fire, your endocrine system would trigger the release of  adrenaline which is the fight or flight hormone. it would affect your heart rate, metabolism, oxygen intake, and blood flow allowing you to move quicker and escape the fire

A substance that takes the shape and volume of its container is in this phase is called a liquid

Answers

Answer:

liquid matter

Explanation:

A calcium atom has 20 protons, 20 electrons, and 20 neutrons. When calcium forms a positive two ion it's new composition is

Answers

Answer:

40

Explanation:

I'm not sure

what is the name of the compound whose formula is n,i,2o?

Answers

Answer:

Explanation:

Dinitrogen pentaoxide is a nitrogen oxide.

...

3.1Computed Properties.

Property Name Property Value Reference

Formal Charge 0 Computed by PubChem

explain the electrolysis of MgCl2 in aqueous solution

Answers

During electrolysis, a current is passed through the molten MgCl2, and when this happens, the Mg2+ ions move to the negative electrode where they PICK UP OR GAIN ELECTRONS. This is reduction. The Cl- ions move to the positive electrode where they LOSE ELECTRONS. This is oxidation.

What mass of aluminum must react with 100 g of copper (ii) phosphate? (10g)

Answers

it would be 10g or 50g

Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, 4.42g of aluminum must react with 100 g of copper (ii) phosphate.

What is mole?

The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity or amount of substance. We know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number.

Mathematically,

mole =given mass ÷ molar mass

2 Al + 3 Cu[tex]_3[/tex](PO[tex]_4[/tex])[tex]_2[/tex] → Al[tex]_2[/tex] (PO[tex]_4[/tex])[tex]_3[/tex]+ 3 Cu

moles of copper phosphate= 100 g/380.58

                                               =0.26 moles

3 moles of copper sulphate need 2 mole of Al

0.26 moles of copper sulphate need (2/3)×0.26

                                                         =0.17moles

mass of Al= 0.17×26

                  =4.42g

Therefore, 4.42g of aluminum must react with 100 g of copper (ii) phosphate.

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How do you think dry cleaning works?

Answers

During dry cleaning, the pump pulls solvent from the tank and sends it through the filters to remove any impurities. The filtered solvent then enters the cylinder, where it interacts with the fabrics and removes any soil. The solvent then travels back into the holding tank so it can begin the process again.

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A student wants to test for the concentration of food dye FD&C Yellow #5 (Tartrazine) in a yellow Starburst candy. First, the student must prepare standard solutions for the calibration curve. The student has a stock solution of FD&C Yellow #5; the concentration is 0.1140 M. The student takes 6.50mL of the stock solution and dispenses it into a 50.0mL volumetric flask. The flask is then diluted to volume with water. What is the concentration of this standard solution?

Answers

The molarity of the diluted standard solution is obtained by calculation to be 0.015 M.

Recall the dilution formula;

C1V1 = C2V2

C1 = Initial concentration = 0.1140 M

V1 = initial volume =  6.50mL

C2 = Final concentration = ?

V2 = Final volume = 50.0mL

Making C2 the subject of the formula and substituting values;

C2 = C1V1/V2

C2 = 0.1140 M ×  6.50mL/50.0mL

C2 = 0.015 M

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which blue and violet gemstone is used as the birthstone for december?

Answers

Answer:

Tanzanite

Explanation:

Tanzanite is the exquisite blue-purple variety of the mineral zoisite that is only found in one part of the world. Named for its limited geographic origin in Tanzania, tanzanite has quickly risen to popularity since its relatively recent discovery.

I need answer for a. (ii) pls​

Answers

Answer:

Stopwatch

Stopwatch is a time measuring tool.

write a balanced equation for the formation of co2 g from c s and o2 g

Answers

Answer:

C (s) + O2 (g) > CO2 (g)

That's what I got

1.37x1020 uranium atoms

Answers

Explanation:

1397.4 uranium atoms......

What for a neutral element is [Kr] 4d8 5s2 ?

Answers

Answer:

1.Hydrogen: 1s1 2 - Helium: 1s2

45 – Rhodium: [Kr], 5s2, 4d7 46 – Palladium: [Kr], 5s2, 4d8

47 – Silver: [Kr], 5s2, 4d9 48 – Cadmium: [Kr], 5s2, 4d10

49 – Indium: [Kr], 5s2, 4d10, 5p1 50 – Tin: [Kr], 5s2, 4d10, 5p2

Thus 43 electrons, so the neutral atom has atomic number 43. Look at a periodic table and you see that this element is technetium.

Element Atomic Number Element Symbol Element Electron Configuration

45 Rh [Kr] 4d8 5s1

46 Pd [Kr] 4d10

47 Ag [Kr] 4d10 5s1

48 Cd [Kr] 4d10 5s2

Rebekah finds that a solution of sugar in water has a volume of 1. 32 fl. Oz. How should she report this amount using the metric system? (1 fl. Oz. = 29. 6 mL) 0. 403 m 1. 40 qt 37. 5 g 39. 1 mL.

Answers

Rebekah reports the volume of sugar solution using metric system as 39.1 mL. Thus, option D is correct.

The metric system has been the measurement system introduced in 1790s. The system has mediated the units for the measurement of volume, mass, length.

The volume has been the space that has been occupied by matter. The volume can be denoted with SI unit L. However, the another accepted unit for volume has been mL.

Thus, the volume of sugar solution has been reported in mL.

The given sugar solution has volume of 1.32 fl. Oz

The volume in mL can be given as:

[tex]\rm 1\;fl\;Oz=29.6\;mL\\1.32\;fl\;Oz=1.32\;\times\;29.6\;mL\\1.32\;fl\;Oz=39.1\;mL[/tex]

The volume of the sugar solution reported by Rebekah on the metric scale has been 39.1 mL. Thus, option D is correct.

For more information about the metric system, refer to the link:

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Which gas makes your voice deeper or has the opposite effect on you than helium when you inhale it.

Answers

The correct answer is Sulfur Hexafluoride
it’s an inert gas that is known to be six times heavier than the air we breathe. While Helium being lighter makes our voice higher, SF6 makes our voice deeper. The sound travels slower in denser gases which is why our voice will come out deeper and rather slow.

Answer:

Sulfur hexafluoride

Explanation:

It is heavier than air that we breathe so it has an opposite effect.

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Where do properties of matter come from?

Answers

Answer:

Extensive or inextinsive and either physical or chemical

Please help me with this three questions

Answers

Answer:

1. A. Thyroid Gland Function

B. detecting Blood Clots

C. Treating Cancer

2. An example would be how many are used as tracers for diagnostic purposes

3. Beneficial because it gives us ways to eleminate pests, by the sterile insect technique

Number three is kinda iffy a bit difficult to explain it may be explained better in your book.

Why is eating animals to obtain energy considered exothermic

Answers

Its considered exothermic because it helps then stay cool or and hot

A gas occupies 900 mL at a temperature of 27 °C. What is the volume at

132 °C?​

Answers

Answer:

4400 ml

Explanation:

What is leukemia?
A. Cancer that affects the blood
B. Prostate cancer
C. Breast cancer
D. Lung cancer

Answers

Answer:

A: Cancer that affects the blood

information: Leukemia is a cancer of the early blood-forming cells. Most often, leukemia is a cancer of the white blood cells, but some leukemias start in other blood cell types.

At room temperature Bromine is a liquid and lodine is a solid, what can be inferred
about the intermolecular forces of these two elements?

Answers

Answer:

Explanation:

The intermolecular forces are stronger in Iodine, meaning that its molecules are stronger and can hold that solid structure at room temperature, where Bromine cannot due to its IMF's being weaker.

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