Atom Quiz

What is the total number of protons and neutrons in an atom called?

• Isotope number

• Electron number

• Mass number

• Atomic number

Answer explanation

The total number of protons and neutrons in an atom is called the mass number. It helps determine the atom's atomic mass.

Tags

NGSS.MS-PS1-5

Which subatomic particle has a positive charge?

• Proton

• Quark

• Electron

• Neutron

Answer explanation

The subatomic particle with a positive charge is the proton. It is one of the fundamental particles of an atom and is located in the nucleus.

Which subatomic particle has a negative charge?

• electron

• photon

• neutron

• proton

Answer explanation

The subatomic particle with a negative charge is the electron. It is one of the fundamental particles of matter.

What is an atom?

• A large molecule

• Largest piece of matter

• Smallest piece of matter

• A molecule made of ions

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

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

• In the nucleus

• Racing around the nucleus

True or false: Atoms make up everything around you.

• True

• False

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Which number here is my atomic number?

• 5

• 10.811

Tags

NGSS.MS-PS1-1

Protons are ___________

• Negative

• Neutral

• Positive

Electrons are ___________.

• positive

• negative

• neutral

Tags

NGSS.MS-PS2-3