Unit 2 Review

The nucleus of an atom contains which subatomic particles?

• protons and electrons

• protons and neutrons

• electrons and neutrons

• protons, electrons, and neutrons

Tags

NGSS.MS-PS1-1

Which subatomic particle is counted to determine the type of element the atom represents?

• proton

• neutron

• electron

• boron

Tags

NGSS.MS-PS1-1

How many neutrons are in the atom "K"?

• 29

• 19

• 58

• 20

Adding or subtracting neutrons (charge = 0, mass = 1) makes the element change into an...

• ion
• mixture
• isotope
• neutral atom

Tags

NGSS.HS-PS1-8

The atomic mass is equal to _.

• the number of protons only
• the number of neutrons only
• the total number of protons and neutrons
• the number of protons, neutrons, and electrons.

An atom that has gained or lost electrons is called ...

• a winner
• an isotope
• an ion
• a loser

Which subatomic particle has a negative charge?

• proton

• neutron

• electron

• cybertron

Tags

NGSS.MS-PS1-1

What is the center of an atom called?

• The headquarters

• The centrometer

• The hypothesis

• The nucleus

Tags

NGSS.MS-PS1-1

Which color on the image of the periodic table corresponds with the halogens.

• red

• black

• blue

• orange

Tags

NGSS.HS-PS1-1

Which color on the image of the periodic table corresponds with the lanthanides.

• red

• black

• blue

• orange

Tags

NGSS.HS-PS1-1