Exploring Orbital Diagrams and Electron Configuration

What is the electron configuration of nitrogen?

• 1s2 2s2 2p2

• 1s2 2s1 2p4

• 1s2 2s2 2p4

• 1s2 2s2 2p3

How many unpaired electrons does nitrogen have?

• 1

• 4

• 2

• 3

Is magnesium paramagnetic or diamagnetic?

• Neither

• Both

• Diamagnetic

• Paramagnetic

How many electrons does a phosphorus atom have?

• 14

• 13

• 16

• 15

How many electrons does a sulfide ion (S^2-) have?

• 16

• 17

• 18

• 19

What is the charge of a sulfide ion?

• -2

• +2

• +1

• -1

How many electrons does an aluminum plus three ion (Al^3+) have?

• 13

• 10

• 11

• 12

What is the electron configuration of an aluminum plus three ion (Al^3+)?

• 1s2 2s2 2p6

• 1s2 2s2 2p5

• 1s2 2s2 2p4

• 1s2 2s2 2p3

How many protons does cobalt have?

• 25

• 26

• 28

• 27

When dealing with transition metal ions, from which energy level should electrons be removed first?

• Middle energy level

• Highest energy level

• Any energy level

• Lowest energy level