1.2 AP and Chemistry Unit 3

Which subatomic particles have a negative charge?

• Electrons

• Neutrons

• Protons

• Quarks

Subatomic particles with a positive charge

• neutrons

• atomic mass

• protons

• isotopes

These are found in the nucleus and have a neutral charge.

• Proton

• Electron

• Neutron

Tags

NGSS.HS-PS1-8

What distinguishes a neutral atom from an ion?

• A change in the number of protons.

• A change in the number of neutrons.

• A change in the number of electrons.

• A change in the number of quarks.

What is the smallest particle of an element that still retains the properties of the element?

• A nucleus.

• A proton.

• A neutron.

• An atom.

To determine what element an atom is, you must look at the number of ______________.

• Protons

• Neutrons

• Electrons

• Quarks

The atomic number is equal to the number of _____________.

• Protons

• Neutrons

• Electrons

• Quarks

Tags

NGSS.HS-PS1-7

What is the atomic number of carbon?

• 5

• 6

• 7

• 8

What is the mass number?

• Total number of protons and electrons.

• Total number of electrons and neutrons.

• Total number of protons and neutrons.

• Total number of protons, neutrons, and electrons.

Tags

NGSS.HS-PS1-8

What is the mass number of a Helium atom that has three neutrons?

• 2

• 3

• 4

• 5