PRACTICE - Unit 3 Test part II

How many electrons fit in the first energy level?

• 2

• 4

• 8

Tags

NGSS.HS-PS1-1

What is the name of this element?

• Helium
• Hydrogen
• Argon
• Silver

Tags

NGSS.HS-PS1-1

What is the name of this element?

• Lithium
• Boron
• Carbon
• Neon

Tags

NGSS.HS-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?

• 2
• 4
• 6
• none of the above

Tags

NGSS.HS-PS1-1

What group does this element belong to?

• Group 1: Alkali metals
• Group 18: Noble Gases
• Group 2: Alkaline-Earth Metals
• Group 17: Halogens

Tags

NGSS.HS-PS1-1

How many valence electrons?

• 2
• 3
• 5
• 10

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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.HS-PS1-1

NGSS.HS-PS1-2

On the periodic table, Groups are

• Horizontal rows

• Vertical columns

On the periodic table, Periods are

• Horizontal rows

• Vertical columns