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

• 14
• 28
• 2
• 4

Tags

NGSS.HS-PS1-1

How many electrons can the first energy level hold?

• 1
• 2
• 8
• 0

What is the electronic configuration of Lithium?

• 2.8.8

• 2.2.2

• 2.8.5

• 2.1

Tags

NGSS.HS-PS1-1

How many electrons per shell does calcium have?

• 2,8,8,2

• 2,8,10

• 2,8,2,8

• 2,1,8,2

Tags

NGSS.MS-PS1-1

Atoms are neutral because...

• They have 3 particles

• Neutrons and protons = 0

• They have equal numbers of protons and electrons

• They have a pH of 7

Tags

NGSS.MS-PS1-1

Which element has the electronic configuration 2.8.2 ?

• fluorine

• hydrogen

• magnesium

• sulfur

Tags

NGSS.HS-PS1-1

What is the electron configuration for this atom?

• 1s²2s²2p⁶
• 1s²2s²2p⁵
• 1s²2s²2p³
• 2s²2p³

Tags

NGSS.HS-PS1-1

What is the noble gas shorthand electron for Sulfur atom?

• [Ar] 3p⁴
• [He] 3s²3p⁴
• [Ne] 3s²3p⁴
• [Na] 3s²3p⁴
  

Tags

NGSS.HS-PS1-1

What atom matches this electron configuration?
1s²2s²2p⁶3s²

• Neon
• Magnesium
• Aluminum
• Potassium

Tags

NGSS.HS-PS1-1

Which element is depicted from this orbital diagram

• Fluorine
• Neon
• Chlorine
• Argon

Tags

NGSS.HS-PS1-1