Electromagnetic forces occur between electrons and protons while nuclear forces occur between neutrons and protons in the nucleus.
Electromagnetic forces are the forces that are responsible for the attraction between electrons and protons. The electrons in shells repel each other.
The existence of electromagnetic forces explain why positively charged protons repel each other in the nucleus and neutrons are needed to buffer this effect.
The electromagnetic force has a short range. The strong nuclear force applies to the nucleus and focuses on the neutron - proton ratio.
An atom is unstable if it has too many protons because their repulsive force will exceed the nuclear force that keeps them together. Nuclear force is stronger for lighter nuclei than heavier ones.
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Mass cannot be created nor destroyed as well.
So, energy just goes into other things.
Example: you are born. You have carbon dioxide in your body, (or star dust). When you die, your body releases that gas.
Make sense?
I hope this helps! (:
Answer:
The mass of bromine liquid that participates in a chemical reaction=12.8 g
Explanation:
We are given that
Total number of moles of bromine liquid participate in chemical reaction=0.0800 moles
We have to find the mass of bromine liquid that participates.
Atomic mass of Br=79.9 g
1 mole of bromine liquid=2 atomic mass of bromine (Br)
1 mole of bromine liquid (
) =
0.0800 moles of bromine liquid=
g
0.0800 moles of bromine liquid=12.784 g
0.0800 moles of bromine liquid
g
Hence, the mass of bromine liquid that participates in a chemical reaction=12.8 g
