HA revision: Electrons

How many electrons can fit in one orbital?

• 1

• 2

• 4

• 8

How many electons can fit in the n=1 principal energy level?

• 1

• 2

• 4

• 8

How many electrons can fit in the n=2 principal energy level?

• 1

• 2

• 4

• 8

Why can 8 electrons fit in the n=2?

• because it has 1 s orbital

• because it has 1x S- orbital and 1x P- orbitals

• because it has 1x S- orbital and 2x P- orbitals

• because it has 1x S- orbital and 3x P- orbitals

So how many electrons can fit in each orbital?

• 1

• 2

• 4

• 8

Study this electron configuration "1s²2s²2p⁶3s²3p⁶". What do the large numbers represent?

• The principal energy level

• The sublevel

• The orbital

• The number of electrons

Study this electron configuration "1s²2s²2p⁶3s²3p⁶". What do the letters represent?

• The principal energy level

• The sublevel

• The orbital

• The number of electrons

Study this electron configuration "1s²2s²2p⁶3s²3p⁶". What do the small numbers represent?

• The principal energy level

• The sublevel

• The orbital

• The number of electrons

Which element has this electron config. "1s²2s²2p⁶3s²3p⁶4s²3d²"

• K

• Ca

• Sc

• Ti

• V

For this element "1s²2s²2p⁶3s²3p⁶4s²3d²" the electrons with the highest energy are in

• the n=3 principal energy level

• the n=4 principal energy level

• the 3d sublevel

• the 4s sublevel