Question

part a

Write the electron configuration for the element titanium, Ti. Express your answer in order of increasing orbital energy as a string without blank space between orbitals. For example, the electron configuration of Li could be entered as 1s^22s^1 or [He]2s^1.

Part B

How many valence electrons does this atom possess? Express your answer as an integer.

pART c

Hafnium, Hf, is also found in group 4B. Write the electron configuration for Hf. Express your answer in order of increasing orbital energy as a string without blank space between orbitals. For example, the electron configuration of Li could be entered as 1s^22s^1 or [He]2s^1.

Part D

Both Ti and Hf behave as though they possess the same number of valence electrons. Which of the subshells in the electron configuration of Hf behave as valence orbitals?.

Check all that apply.

	1s
	2s
	2p
	3s
	3p
	4s
	3d
	4p
	5s
	4d
	5p
	6s
	4f
	5d

Part E

Which of the subshells in the electron configuration of Hf behave as core orbitals?

Check all that apply.

	1s
	2s
	2p
	3s
	3p
	4s
	3d
	4p
	5s
	4d
	5p
	6s
	4f
	5d