Atoms

Front

Scientist whose atom model looked like a chocolate chip cookie.

Back

Thomsom

Front

The positive particle in an atom.

Back

proton

Front

Who proposed the atomic theory?

Back

Dalton

Front

How many protons does Nitrogen have?

Back

7

Front

Which of the labeled structures is a neutron? Options: a, b, c

Back

b

Front

Who believed that matter is made of small solid objects that cannot be divided, created, or destroyed called atomos?

Back

Democritus

Front

The negative particle in an atom.

Back

electron

Front

What is the mass number of this element?

Back

14

Front

Which of the labeled structures is an electron? Options: a, b, c

Back

a

Front

Scientist that proposed that electrons move in energy levels around the nucleus.

Back

Bohr