Review - Science 9

EASY ROUND:

What is the center of an atom called?

• Nucleus

• Electron

• Proton

• Neutron

Tags

NGSS.HS-PS1-8

EASY ROUND:

Electrons are found in the nucleus of an atom.

• TRUE

• FALSE

EASY ROUND:

Atoms are the basic units of matter.

• TRUE

• FALSE

Tags

NGSS.MS-PS1-1

EASY ROUND:

Electrons occupy fixed orbits around the nucleus in the Bohr model.

• TRUE

• FALSE

EASY ROUND:

Name the positively charged particle in an atom.

EASY ROUND:

Which particle has no charge?

• Proton

• Neutron

• Electron

• Positron

EASY ROUND:

Name the negatively charged particles in an atom.

EASY ROUND:

Who proposed the Plum Pudding Model?

• John Dalton

• J.J. Thomson

• Ernest Rutherford

• Niels Bohr

EASY ROUND:

Which atomic model introduced probability in electron locations?

• Nuclear Model

• Quantum Mechanical Model

• Plum Pudding Model

• Solid Sphere Model

EASY ROUND:

What atomic model did Niels Bohr develop?