Electron configuration beyond calcium - Atomic Structure (3.4)

Question 1

For most orbitals, the energy level is equal to the period number. True or False?

Answer 1

True - changes with d-block.

Question 2

The 3d orbital fills before the 4s orbital. True or False?

Answer 2

False - 4s orbital fills before the 3d orbital as it more energetically favourable.

Question 3

Electrons from the 4s orbital are removed before the 3d orbital. True of False?

Answer 3

True - the only exception as electrons are usually removed in reverse order

Question 4

Which group of elements can we use to show electronic configurations?

Answer 4

Noble Gases

Question 5

Which group of elements forms one stable ion/atom with a partially filled d-subshell?

Answer 5

Transition Metals

Question 6

With transition metals, 4s orbitals are filled before 3d orbitals. True or False?

Answer 6

True

Question 7

With which transition metals is it more favourable to have one unpaired electron in the 4s orbital?

Answer 7

Chromium and Copper.

Question 8

A transition metal must have a stable atom/ion with a partially filled d-orbital. True or False?

Answer 8

True

Question 9

What bonds form when orbitals overlap with each other?

Answer 9

Covalent Bonds

Question 10

When orbitals overlap “head-to-head” what bond is formed?

Answer 10

Sigma bond.