Chemistry Journal Entry 5

Atomic Structure

Guess what? There are even smaller things in atoms. Mainly there are three different parts in an atom. 

1. PROTONS

2. NEUTRONS 

3.ELECTRONS 

Protons carries one positive electric charge, a relative mass of 1, and with a  symbol P. Neutrons carries no electric charge, has a relative mass of 1 and symbol is N. Electrons carries one negative electric charge, has a relative mass of 1/1840 which is negligible but important. ( Symbol : e)

Masses of particles are determined by Atomic Mass Unit. ( amu) 

1 amu is 1.67 x 10 to the power of 27 kg 

WHICH IS REALLY REALLY SMALL. 

A cell is already so small, an atom is even smaller, it is really astounding.

Then we have the PROTON NUMBER and the NUCLEON NUMBER. 

Proton Number is basically the atomic number. It is usually found on the left below corner of a chemical symbol. 

The nucleon number is the total number of neutrons and protons in an atom. It is usually found on the left top corner of the chemical symbol. 

That's all! ;)