Unit 3 Academic Chemistry Atoms Flashcard

Front

Who discovered the nucleus and realized that an atom is mostly empty space?

Back

Rutherford

Front

Which subatomic particle has a negative charge?

Back

Electron

Front

What subatomic particles are found in the nucleus of an atom?

Back

Protons and Neutrons

Front

What is the subatomic particle with a mass of 1 amu and a positive charge?

Back

Proton

Front

Who created the word 'atomos' which means indivisible?

Back

Democritus

Front

What is the charge of a proton?

Back

Positive

Front

What is the charge of a neutron?

Back

Neutral

Front

What is the charge of an electron?

Back

Negative

Front

What is the mass of a neutron in atomic mass units (amu)?

Back

1 amu

Front

What is the mass of an electron in atomic mass units (amu)?

Back

Approximately 0 amu