semester 1 review Atomic theory and atomic structure

What is the smallest unit of matter called

• elements

• atoms

• compounds

• cells

What is the atomic mass of Neon?

• 10

• 20.18

• 10.18

• 20

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 neutrons are in a Gold atom?

• 79
• 196
• 118
• 275

Tags

NGSS.MS-PS1-1

How many electrons does a Copper atom have?

• 63
• 29
• 92
• 34

Tags

NGSS.MS-PS1-1

What element is represented in this Bohr Model? 

• Carbon
• Hydrogen
• Aluminum
• Lithium

Tags

NGSS.MS-PS1-1

What's a valence electron?

• electrons in the second energy level
• electrons in the outermost energy level
• the atomic number
• electrons in the first level

Tags

NGSS.MS-PS1-1

How many valence electrons do atoms need to be stable?

• 1

• 2

• 6

• 8

Which of the following has a full valence shell?

• Oxygen
• Neon
• Barium
• Carbon

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2