Electronic Structure

Question 1

Atomic Orbitals are

Answer 1

Regions around the nucleus with a high probability of finding two oppositely spinning electrons

Question 2

In what direction do electrons in orbitals spin?

Answer 2

Opposite direction.

Question 3

The s sub shell has _ orbitals

Answer 3

1

Question 4

The p sub shell has _ orbitals

Answer 4

3

Question 5

The d sub shell has _ orbitals

Answer 5

5

Question 6

The f sub shell has _ orbitals

Answer 6

7

Question 7

What shape are orbitals in the s sub shell?

Answer 7

Spherical

Question 8

What shape are orbitals in the p sub shell?

Answer 8

Dumbbell

Question 9

Explain why Chromium is an anomaly?

Answer 9

There are two electrons in the 4s subshell, so it moves to the empty atomic orbital in the 3d subshell to reduce repulsion

Question 10

Explain why Copper is an anomly?

Answer 10

An atom is more stable if it has a full electron shell. So one of the electrons in the 4s sub shell moves to the 3d subshell to fill it up.

Question 11

Why does the 4s orbital fill up before the 3d orbital?

Answer 11

The 4s sub shell has lower energy than 3d sub shell when both of the sub shells are unfilled.

Question 12

What are the two anomolies?

Answer 12

Copper and Chromium