Answer to Question #155124 in General Chemistry for Innocent

Question

The atomic no of sodium is 11 and it's relative atomic mass is 22.99

I. What is the mass no of a sodium atom?

ii. How many protons, neutrons and electrons are there in a sodium atom? What are the principal differences between these particles

Answer 1

23 is the moss no. of Sodium atom .

In sodium atom :

protons = 11

neutrons = 12

electrons = 11

Difference between protons, neutrons and electrons:

protons : protons are positively charged.

protons are denoted by p .

neutrons : neutrons are neutral . neutrons are denoted by n .

electrons : electrons are negatively charged. electrons are denoted by e.