What is the smallest basic unit of matter, or the building block of matter?

• Proton

• Atom

• Electron

• Neutron

Which subatomic particle is positively charged?

• Electron

• Neutron

• Atom

• Proton

Which subatomic particle is electrically neutral?

• Neutron

• Atom

• Proton

• Electron

Where is the center of an atom located?

• Nucleus

• Electron

• Atom

• Proton

What are the energy levels surrounding the nucleus of an atom called?

• Neutron Shells

• Electron Shells

• Proton Shells

What is the charge of an ion? (up to two correct answers)

• No Charge

• Neutral

• Negative

• Positive

Tags

NGSS.MS-PS2-3

What is a positively charged atom called?

• Proton

• Cation

• Anion

• Electron

What is the rounded atomic weight to the nearest whole number for an element called?

• Mass Number

• Element

• Atomic Number

• Atomic Weight

The mass of the protons and the neutrons in the nucleus is called the

• Mass Number

• Element

• Atomic Number

• Atomic Weight

Tags

NGSS.HS-PS1-8

What is the negatively charged subatomic particle called?

• Proton

• Neutron

• Electron

• Atom