Electron configuration

How many electrons can the first energy level hold?

• 1
• 2
• 8
• 0

The second energy level of an atom can hold how many electrons?

• 2

• 6

• 8

• 18

Electrons that take part in reactions are located...

• inside the nucleus

• in outer space

• on the outer energy level of an atom

How many electrons does Neon have in its outer energy level?

• 10

• 2

• 8

• 18

How many electrons does Silicon have in its outer energy level?

• 14

• 4

• 3

• 28

How many bonding electrons are represented here?

• 7

• 5

• 2

• 8

How many electrons does Si contain? (click to see image)

• 14

• 28

• 2

• 4

What is the electron configuration of sodium?

• 2.8
• 2.8.2
• 2.8.1
• 11

Tags

NGSS.HS-PS1-1

Which element has an electron configuration of 2.5?

• Oxygen
• Nitrogen
• Phosphorus
• Carbon

Tags

NGSS.HS-PS1-1

Which element has an electron configuration of 2.8.8?

• Lead
• Flourine
• Neon
• Argon

Tags

NGSS.HS-PS1-1