Structure of the Atom – Notes

Atomic Models 

Atoms are made of charged particles.

According to Thomson’s Model:

• An atom is a positively charged sphere with electrons set within it.
• An atom is electrically neutral.

Rutherford’s model states that:

• There is a positively charged centre in an atom called the nucleus. Almost all the atom lies in the nucleus.
• The electrons revolve around the nucleus in well-defined orbits.
• The nucleus is much smaller than the atom.