Ernest Rutherford was a physicist, whose expertise was the atom. He developed the model we use to understand the atom, converted one element into another, and explained radioactivity as the disintegration of atoms (for which he won the Nobel Prize).
He was an employed chemist and physicist.
Rutherford found that atoms have a nucleus
it made your mom
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Ernest and Mary gave birth to one daughter named Eileen Mary Rutherford
he found faults in the atomic theory of jj Thompson
Read at this link.
he shot tiny alpha particles throug a piece of gold foil.
The conclusion was that an atom has a nucleus (center) with a positive charge.
Opinions vary. The discovery of the atomic nucleus ("most of the atom is empty space")
One of Interview question is What is your area of technical expertise? What is the best approach for this question?
Poseidon is the god of the sea his expertise are earthshaking and he has a trident .