bohr model

What is the name of this element?

• Helium
• Hydrogen
• Argon
• Silver

Tags

NGSS.MS-PS1-1

What is the name of this element?

• Lithium
• Boron
• Carbon
• Neon

Tags

NGSS.MS-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.MS-PS1-1

How many valence electrons?

• 2
• 3
• 5
• 10

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

On the periodic table, Groups are

• Horizontal rows

• Vertical columns

On the periodic table, Periods are

• Horizontal rows

• Vertical columns

The innermost energy level has a maximum of how many electrons?

• 1

• 2

• 6

• 8

What is this element?

• Beryllium (atomic #4)

• Boron (atomic #5)

• Carbon (atomic #6)

• Nitrogen (atomic #7)

Tags

NGSS.MS-PS1-1

What group does this element belong to?

• 1

• 2

• 17

• 18