Unit 2 Exam: Atoms and Molecules - P3

What is the number of protons that the element in this image contain?

• 14

• 7

• 15

• 18

Tags

NGSS.MS-PS1-1

All matter is made of what?

• energy

• atoms

• electrons

• compounds

Tags

NGSS.MS-PS1-1

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

• 6

• 12

• 3

• cannot be determined

If this atom has a balanced charge, how many protons would you expect to find in this atom? (Refer to the illustration to answer this question)

• 2

• 6

• 4

• 0

Tags

NGSS.MS-PS1-1

Where are electrons of an atom found?

• Nucleus

• Electron Cloud

• Some are in the nucleus and some in the electron cloud.

• Hiding from the Quarks!

If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass number of the atom?

• 10

• 20

• 30

• so massive it can't be counted

Which subatomic particle has a negative charge in the atom?

• proton

• neutron

• electron

• quark

Tags

NGSS.MS-PS1-1

If an electrically neutral atom has 10 electrons, how many protons does it have?

• 0

• 1

• 10

• 5

Tags

NGSS.MS-PS1-1

What is the mass number of this atom?

• 1

• 3

• 4

• 7

Tags

NGSS.MS-PS1-1

What is the atomic number of this atom?

• 1
• 3
• 4
• 7

Tags

NGSS.MS-PS1-1