What are the three subatomic particles that compose atoms?

• Quarks

• Proton

• Neutron

• Electron

• Meson

Tags

NGSS.MS-PS1-1

The center of the atom is called the

• Nucleus

• Nucleolus

• Electron cloud

Tags

NGSS.MS-PS1-1

What particles are located in the nucleus?

• Electron

• Neutron

• Proton

Tags

NGSS.MS-PS1-1

The mass number is found by adding the

• Protons

• Electrons

• Neutrons

The charge of an electron is

• Positive

• Negative

• Neutral

Tags

NGSS.MS-PS2-3

The charge of a neutron is

• Positive

• Negative

• Neutral

The atomic number is always equal to the number of which particle?

• Proton

• Neutron

• Electron

Which particle(s) below is/are different in an isotope of an atom?

• Protons

• Neutrons

• Electrons

Carbon is atomic #6. If you have an isotope of Carbon-15, how many protons will it have?

• 6

• 15

• 21

• 9

Tags

NGSS.MS-PS1-1

Carbon is atomic #6. If you have an isotope of Carbon-15, how many neutrons will it have?

• 6

• 15

• 21

• 9

Tags

NGSS.MS-PS1-1