Atoms

Scientist whose atom model looked like a chocolate chip cookie.

• Bohr

• Chadwick

• Dalton

• Thomsom

The positive particle in an atom.

• proton

• neutron

• electron

• electron cloud

Tags

NGSS.MS-PS1-1

He proposed the atomic theory.

• Bohr

• Chadwick

• Dalton

• Rutherford

How many protons does Nitrogen have?

• 7

• 8

• 14

• 14.01

Tags

NGSS.MS-PS1-1

Which of the labeled structures is a neutron?

• a

• b

• c

Tags

NGSS.MS-PS1-1

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

• Aristotle

• Democritus

• Dalton

• Bohr

Tags

NGSS.MS-PS1-1

The negative particle in an atom.

• proton

• neutron

• electron

What is the mass number of this element?

• 7

• 8

• 14

• 14.01

Tags

NGSS.MS-PS1-1

Which of the labeled structures is an electron?

• a

• b

• c

Tags

NGSS.MS-PS1-1

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

• Dalton

• Rutherford

• Thomson

• Bohr