Inside the Atom

This atomic particle balances the charges from the protons to make the atom neutral

• proton

• electron

• neutron

• nucleus

6.What scientist is best known for his "Plum Pudding" model of the atom?

• J.J. Tomson

• Ernest Rutherford

• John Dalton

• Democritus

Tags

NGSS.MS-PS1-1

7.How many electrons does this oxygen atom have?

• 6

• 8

• 16

• 24

Tags

NGSS.MS-PS1-1

JJ Thomson discovered what subatomic particle

• electron

• proton

• neutron

• nucleus

Rutherford discovered what part of the atom

• electron

• proton

• neutron

• nucleus

Who proposed the theory that atoms orbit the nucleus in specific orbits.

• dalton

• bohr

• rutherford

• chadwick

These particles are found in the nucleus

• protons and electrons

• protons and neutrons

• nucleus and neutrons

• electrons and neutrons

8.How many electrons does the first shell hold?

• 1

• 2

• 4

• 8

9. Electron shells are numbered 1, 2, 3, 4. Their corresponding lettered shells are:

• N, O, P, Q

• K, L, M, N

• L, M, N, O

• A, B, C, D

What type of radioactive decay is shown here?

• Alpha decay

• Beta decay

• Gamma decay

Tags

NGSS.HS-PS1-8