the physical properties of ammonium sulphate are colorless gas, less dense than air, pungent shell, very soluble in water, alkaline gas
Their identified by the number of protons they have in the nucleus which = their electrons.
Because the helium inside it is lighter than air , hence it rises up
The balloon from our breath contains carbon dioxide which is heavier than air so it doesn’t rise
Answer:
In order to obtain eight valence electrons (an octet), the potassium atom will transfer its single valence electron to the fluorine atom.