Answer:
b: LARGER
Explanation:
im just different :)
What is a half-life of an isotope? please help
Answer:
Explanation:
Hello! Hope this helps!
One important measure of the rate at which a radioactive substance decays is called half-life, or t1/2. Half-life is the amount of time needed for one half of a given quantity of a substance to decay. Half-lives as short as 10–6 second and as long as 109 years are common.
does temperature stay the same when heat energy increases?
Answer:
More energy is required to raise its temperature. Therefore, temperature does not stay the same when heat energy increases.
Question 2 (2 points)
(03.01 LC)
There are more protons than electrons in a positively charged atom. (2 points)
OTrue
OFalse
Answer:
True.
General Formulas and Concepts:
Chemistry
Reading a Periodic TableNeutral Atoms and IonsChargesExplanation:
Protons have a positive (+) charge.
Electrons have a negative (-) charge.
If the ion is positively charged, that means that there are more protons than electrons. Therefore, the statement is true.
(BrainPop Will give brainliest)
Based on the information from the movie, what can you conclude about the most common chemical compound on earth?
A) It's oxygen incorrect answer
B) It's hydrogen gas incorrect answer
C) It's carbon dioxide incorrect answer
D) It's water
Answer: What movie? The one where i ate chicken. (I eat chicken at all times)
Explanation: Its oxygen anyway
Two or more than two atoms with different physical or chemical properties can not combine together to form an element. Oxygen is the most common chemical compound on earth. The correct option is option A.
What is element?Element generally consist of atoms or we can atoms combine to form element. Atoms of an element is always same, means all the properties of all atoms of one type of element is same.
Oxygen and water are the most abundant on earth. Carbon dioxide and hydrogen gas are the rarest. Out of Oxygen and water, oxygen is the most abundant gas on the earth. Carbon dioxide are mostly released on combustion. two third of earth surface is covered by water.
Therefore, oxygen is the most common chemical compound on earth. The correct option is option A.
To know more about element, here:
https://brainly.com/question/8460633
#SPJ2
What are the regions of the spectrum with wavelengths that can pass through the atmosphere called?
Answer:
These regions of the spectrum with wavelengths that can pass through the atmosphere are referred to as "atmospheric windows." Some microwaves can even pass through clouds, which make them the best wavelength for transmitting satellite communication signals.
Explanation:
Hope this helps. Have a great rest of your day :)
PLEASE HELPPPP!!!!!!! (for science)
Nora notices water droplets on the grass in the morning. It did not rain during the night. Which statement is true about this change of state?
1. Mass was added to the water particles, resulting in a deposition.
2. Energy was added to the water particles, resulting in evaporation.
3. Mass was removed from the water particles, resulting in sublimation.
4. Energy was removed from the water particles, resulting in condensation.
Answer:
4
Explanation:
because morning dew is condensation
. What units would you use to measure a red blood cell?
1. Nanometers
2. micrometers
3. millimeters
Answer:
nanometers im guessing :<
Explanation:
A student is pulling a large recycling bin. A teacher fills it with old papers to recycle. What property of the bin changes, and in what way? What does the student have to do to keep the bin moving at the same speed?
Answer:
the mass use his or her force to keep it at the same speed
Explanation:
List the three subatomic particles. Give the relative masses and charges of each.Identify the type of bond(s) present in each of the following substances:
NaCl
C2H6
MgO
Ag6
N2O4
F2
Fe5
CO2
Answer:
The electron is subatomic particle that revolve around outside the nucleus and has negligible mass. It has a negative charge.
relative charge = -1
Relative mass = 1.1836
It was discovered by j. j. Thomson in 1897 during the study of cathode ray properties.
He constructed the glass tube and create vacuum in it. He applied electric current between electrodes. He noticed that a ray of particles coming from cathode to wards positively charged anode. This ray was cathode ray.
Properties of cathode ray:
The ray is travel in straight line.
The cathode ray is independent of composition of cathode.
When electric field is applied cathode ray is deflected towards the positively charged plate.
Hence it was consist of negatively charged particles.
While neutron and proton are present inside the nucleus. Proton has positive charge while neutron is electrically neutral. Proton is discovered by Rutherford while neutron is discovered by James Chadwick in 1932.
Relative mass of proton= 1
Relative mass of neutron = 1
Relative mass of proton = +1
Relative charge of neutron = 0
The number of electron or number of protons are called atomic number while mass number of an atom is sum of protons and neutrons. The umber of protons and electrons are always equal to make the atom electrically neutral.
Explanation:
pleassssse helpppppp
Answer:
Solar Energy
Explanation: