Atoms and Atomic Structure

What are the 3 subatomic particles that make-up the atom?

• protons, neutrons, and isotopes

• neutrons, isotopes, and electrons

• positives, negatives, and electrons

• protons, neutrons, and electrons

Tags

NGSS.MS-PS1-1

The center of an atom is known as the

• nucleus

• electron cloud

• neutron cloud

• mass circle

A particle that orbits around the nucleus is a(n)...

• Proton

• Neutron

• Electron

• Quark

Tags

NGSS.MS-PS1-1

What does the nucleus of an atom contain?

• Electrons and neutrons

• Protons and neutrons

• Neutrinos and positrons

• Electrons and megatrons

Tags

NGSS.MS-PS1-1

The atomic number of an atom is the number of 

• protons in its electron cloud

• protons in its nucleus

• neutrons in its nucleus

• electrons and neutrons in the nucleus

An atom with atomic number 6 would have how many protons?

• 6

• 12

• 3

• cannot be determined 

Which letter represents a proton?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-1

Which letter represents the nucleus?

• A

• B

• D

• E

Tags

NGSS.MS-LS1-2

What is atomic number?

• Number of protons in an atoms 

• Number of neutrons in an atom

• Mass of an atom

• Charge on an atom

The total number of protons and neutrons in an atom is called the...

• Atomic number

• Proton number

• Mass number

• Weight number