Subshell configuration

Which of the following is not a subshell?

• r

• s

• p

• d

• f

How many electrons can fit in the s subshell?

• 2

• 6

• 10

• 14

How many electrons can fit in the f subshell?

• 2

• 6

• 10

• 14

How many electrons can fit in the p subshell?

• 2

• 6

• 10

• 14

Which of the following subshells is NOT present in the 3rd main shell?

• s

• d

• p

• f

Which subshell is the lowest in energy?

• 2p

• 3p

• 4p

• 5p

For the following electron configuration, which is the next subshell to be filled?

1s²2s²2p⁶3s²3p⁶

• 3d

• 4s

• 2d

• 1p

Write the electron configuration for a calcium atom. Don't put spaces in your answer

(a)  

Write the electron configuration for a calcium ion. Don't put spaces in your answer

(a)  

Here is the electron configuration for a chromium atom: 1s2 2s2 2p6 3s2 3p6 4s2 3d4

Write the electron configuration for a chromium ion. (no spaces)

(a)