Answer:
ability to combine with oxygen
Your answer is 4 protons 4 electrons and 5 neutrons
The concentration may be expressed as % m/m, this is the mass of ions in 100 mass units of solution, whose formula is:
% m/m = [mass of ions / mass of solution]*100
Then,
%m/m = [8.5*10^ -3 grams of calcium ions] / [490 grams of solution] * 100 =
% m/m = 1.74 * 10^ -5 %
Answer: 1.74 * 10 ^ -5 %
Neon has filled its outer shells, therefore it is very stable and does not need to react with other elements and doesn’t form compounds.
Heat is like the fire it’s hot.
I think it’s B
Sorry if I’m wrong
