Chapter 5 Review

In an orbital diagram, each arrow represents a(n)

• electron

• sublevel

• orbital

• energy level

In the code, 4s², the 4 represents the

• the orbital

• the sublevel

• the principle energy level

• the number of electrons

In the code, 4s², the 2 represents the

• the orbital

• the sublevel

• the principle energy level

• the number of electrons

What is the electron configuration for fluorine?

• 1s² 2s² 2p⁶

• 1s² 2s² 3s²

• 1s² 2s² 2p⁵

• 2p⁵

How man valence electrons does oxygen have?

• 2

• 4

• 6

• 8

What atom has a ground state electron configuration of

[Kr] 5s² 4d⁴?

• Cr

• Mo

• W

• Re

What element has a ground state electron configuration of 1s² 2s² 2p⁶ 3s¹?

• Be

• Na

• Mg

• K

Which atom is represented by the electron configuration [Xe] 6s2 4f5?

• Pm

• Re

• Sm

• Nd

In which orbital would the electrons have the highest energy?

• 4p

• 3s

• 4s

• 3d

In the ion represented with the symbol N^3-, how many electrons would this ion have?

• 4

• 3

• 7

• 10