8.LS.4.2

What is a positively charged particle?

• neutron

• electron

• proton

• atom

Tags

NGSS.MS-PS2-3

What is a negatively charged particle?

• neutron

• electron

• proton

• atom

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What is a particle with no charge?

• neutron

• electron

• proton

• atom

The mass number is the sum of what two parts of an atom?

• proton and neutron

• proton and electron

• electron and netron

• none of the above

If oxygen-17 has 8 protons, then how many neutrons does it have?

• 9

• 16

• 8

• 7

Tags

NGSS.MS-PS1-1

If oxygen-18 has 8 protons, then how many neutrons does it have?

• 9

• 16

• 8

• 10

Fluorine has a mass number of 19. It has 10 neutrons. How many protons does it have?

• 10

• 9

• 8

• 7

How do you know how many electrons an atom has if you know how many protons it has?

• You add them together to equal the atomic number.

• There is no way of knowing

• You add as many electrons as you need to get to the mass number.

• There must be an equal amount of protons and electrons.

If argon has 18 protons, then how many electrons does it have?

• 18

• 17

• 16

• 15

Tags

NGSS.MS-PS1-1

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks