Atom Review

Which of the three particles has the smallest mass?

• proton

• neutron

• electron

Which particles make up the nucleus of an atom? (you can choose more than one answers)

• proton

• electron

• neutron

Tags

NGSS.MS-PS1-1

Electrons have less mass than protons do

• true

• false

Protons have a negative electrical charge

• true

• false

Electrons are found in the nucleus of the atom

• true

• false

If an atom has 3 electrons, how many protons does it have?

• 1
• 2
• 4
• 3

What is at the center of every atom?

• An electron
• A compound
• A molecule
• A nucleus

Tags

NGSS.HS-PS1-8

The positively charged particles of an atom are the ________.

• electrons
• protons
• neutrons
• protons & neutrons

What does the nucleus of an atom contain?

• Electrons and neutrons
• Protons and neutrons
• Neutrinos and positrons
• DNA and RN

Tags

NGSS.HS-PS1-8

The subatomic particles that make up an atom.

• solid, liquid, gas

• electrons, protons, nucleus

• energy, protons, nucleus

• electrons, protons, neutrons

Tags

NGSS.MS-PS1-1