Question

5/ What do the following symbols stand for?
(a) H
(c) 2H
(b) H​

Answer 1

Answer:

a) H stands for Hydrogen

b) 2H stands for 2 molecules of hydrogen

c) H stands for Hydrogen

Explanation:

When we place a number before the symbol for an element, it stands for the number of molecules. On the other hand, if we were to write H2, it would mean 2 atoms of hydrogen. So, if we write a number after the symbol, it means the number of atoms present in it.

Answer 2

Answer:

H:- hydrogen

2H:- expression 2H indicate two separate hydrogen atoms that are not combined as a unit