Parts of an Atom Review

Why are atoms electrically neutral?

• They contain non-equal numbers of protons (-) and electrons (+).

• They contain equal numbers of protons (+) and electrons (-).

• They contain equal numbers of protons (-) and electrons (+).

• They contain non-equal numbers of protons (+) and electrons (-).

What determines the atomic mass of an atom?

• The number of protons and the number of neutrons.

• The number of electrons and the number of neutrons.

• Number of valence electrons.

• The number of neutrons and valence electrons.

What orbits around the atomic nucleus?

• Nothing orbits around the atomic nucleus

• A "cloud" of electrons

• A "cloud" of protons

• A mixture of both electrons and protons surround the perimeter of the atomic nucleus

Tags

NGSS.MS-PS1-1

Which of these are parts of the atom?

• Protons, ProAthletes, Neutrons

• Neutrons, Protons, Electrons

• Mitochondria, Electrons, Protons

• Oxygen

Tags

NGSS.MS-PS1-1

The nucleus is the center of the atom. Which two parts does it contain? Choose all that are correct.

• Protons

• Electrons

• Neutrons

Protons are ___________

• Negative

• Neutral

• Positive

Neutrons are neutral, with no charge. Where are they located in an Atom?

• In the nucleus

• Racing around the nucleus

Electrons are ___________.

• positive

• negative

• neutral

Neutrons have a ____________ charge.

• Neutral, or no charge

• Positive

• Negative

• Neutron? I don't know what that is!

What is at the center of every atom?

• An electron

• A compound

• A molecule

• A nucleus