Unit 1 - Atoms and the Periodic Table

A nucleus of an atom contains what two parts?

• Electrons and Protons

• Neutrons and Electrons

• Protons and Neutrons

Tags

NGSS.HS-PS1-8

Electron in the outermost energy level are called?

• Valence Electron

• Valence Proton

• Valence Neutron

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many neutrons does Chlorine (Cl) with an atomic number of 17 and an atomic mass of 35.

• 17

• 18

• 19

If an atom has an atomic mass of 11 and contains 5 electrons, its atomic number would be______

• 11

• 5

• 6

Tags

NGSS.HS-PS1-1

What is the atomic mass of Neon?

• 10
• 20.18
• 10.18
• 20.18

Tags

NGSS.HS-PS1-1

How many protons are in Beryllium?

• 4
• 9
• 5
• 2

Tags

NGSS.MS-PS1-1

What is the atomic mass of Copper?

• 63
• 29
• 34
• 92

Tags

NGSS.HS-PS1-1

How many electrons do atoms need to be stable?

• 1
• 2
• 6
• 8

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The blue atoms are called 

• metals
• nonmetals
• metalloids
• noble gases

Tags

NGSS.MS-PS1-1

Each column in the periodic table is called a 

• period
• group
• cluster
• unit