Atoms and Matter Review

What is the basic unit of an element?

• cell

• proton

• atom

• molecule

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

What are the three subatomic particles that make up an atom?

• Protons, Neutrons, and Electrons

• Protons, Neutrons, and Positrons

• Photons, Neutrons, and Electrons

• Protons, Electrons, and Quarks

Tags

NGSS.MS-PS1-1

What is the charge of a proton?

• Positive

• Variable

• Negative

• Neutral

Which shows the charge of an electron?

• 2

• 0

• -1

• 1

What is the function of the nucleus in an atom?

• Stores electrons

• Controls chemical reactions

• Contains protons and neutrons

• Emits light

Tags

NGSS.MS-PS1-1

Which of the following has the lightest mass?

• Proton

• Neutron

• Electron

What is the atomic number of an element?

• The atomic number of an element is the number of isotopes in the nucleus of an atom.

• The atomic number of an element is the number of electrons in the nucleus of an atom.

• The atomic number of an element is the number of neutrons in the nucleus of an atom.

• The atomic number of an element is the number of protons in the nucleus of an atom.

What is the atomic mass of an element?

• The atomic mass of an element is the number of protons in its nucleus

• The atomic mass of an element is the temperature at which it boils

• The atomic mass of an element is the average mass of an atom of that element.

• The atomic mass of an element is the number of electrons in its outer shell

What is the role of the nucleus in determining the identity of an element?

• Controls the temperature of the element

• Stores electrons

• Determines the mass of the element

• Contains protons

Tags

NGSS.HS-PS1-7

An ________________ is a substance that consists of just one type of atom

• atom

• mixture

• substance

• element