Question

plz give answer of question 16 17 18 19 and 20 its urgent plz​

Answer 1

Answer:

17) A sodium ion has a positive charge because it has more proton than a neutral atom.

18) therefore, if one mole of carbon weight 12 gram, then the mass of one atom of carbon is 2×10-23 gram.

16) Assertion is wrong but the reason is correct.

I known these three answer sorry I didn't give other 2 answer.

Explanation:

hope it will help you.