Unit 4: Atoms

The atom is...

• The basic building block of matter

• Unimportant

• Important in creating protons

• I don't know

Tags

NGSS.MS-PS1-1

What are atoms composed of?

• Mass, oxygen, matter

• Protons, neutrons, electrons

• Protons, mass, nuclei

• Electrons, matter, neutrons

Tags

NGSS.MS-PS1-1

_____ orbit the atomic nucleus.

• Protons

• Matter

• Electrons

• Atoms

Protons have ____ charge.

• no

• a negative

• a neutral

• a positive

Electrons have ____ charge.

• no

• a negative

• a positive

• a neutral

Tags

NGSS.MS-PS2-3

What does the atomic number equal?

• The number of electrons

• The number of protons

• The number of neutrons

• The number of atoms.

An atomic model is NOT a reliable representation of an atom.

• False

• True

What is the nature of an element determined by?

• The number of electrons

• The number of neutrons

• Nothing

• The number of protons

What is the atomic number of this element?

• 6

• 12.011

• C

• None of the above

Tags

NGSS.MS-PS1-1

What is the atomic mass the sum of?

• Only protons

• Only electrons

• Protons and electrons

• Protons and neutrons