orbital configuration

What atom matches this electron configuration?
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰

• Zinc
• Copper
• Nickel
• Germanium

Tags

NGSS.HS-PS1-1

The electron configuration of an atom is 1s²2s²2p⁶.  The number of electrons in the atom is 

• 3
• 6
• 8
• 10

Tags

NGSS.HS-PS1-1

Which electron configuration belongs to Chlorine (Cl)?

• 1s² 2s² 2p⁶ 3s² 3p⁵
• 1s² 2s² 2p⁶ 3s² 3p⁶
• 1s² 2s² 2p⁶ 3s² 3p⁷

Tags

NGSS.HS-PS1-1

How many electrons can the d sublevel hold?

• 14
• 10
• 2
• 6

Tags

NGSS.HS-PS1-1

How many electrons can the s sublevel hold?

• 14
• 10
• 2
• 6

Tags

NGSS.HS-PS1-1

How many electrons can the p sublevel hold?

• 14
• 10
• 2
• 6

Tags

NGSS.HS-PS1-1

What is the correct electron configuration for a ground-state atom with 7 electrons? 

•  a. 1s² 2s² 2p³
•  b. 1s² 2s² 2p² 3s¹
• c. 1s² 2s³ 2p²
•  d. 1s² 2s⁵

Tags

NGSS.HS-PS1-1

How many orbitals does a d sublevel have?

• 1

• 3

• 5

• 7

Electrons fill energy levels and sublevels _____ in energy first.

• lower

• higher

What atom matches this electron configuration?
1s² 2s² 2p⁶ 3s²

• Neon
• Magnesium
• Aluminum
• Potassium

Tags

NGSS.HS-PS1-1