Electron Structure

Question 1

what are atomic orbitals?

Answer 1

a region around the nucleus that can hold up to two electrons, with opposite spins

Question 2

what is the shape of a s-orbital?

Answer 2

spherical shape

Question 3

what is the shape of a p-orbital?

Answer 3

dumbell

Question 4

how many s-orbitals are there?

Answer 4

1

Question 5

how many electrons are in an s-orbital?

Answer 5

2

Question 6

how many p-orbitals are there?

Answer 6

3

Question 7

how many electrons are in an p-orbital?

Answer 7

6

Question 8

how many d-orbitals are there?

Answer 8

5

Question 9

how many electrons are in an d-orbital?

Answer 9

10

Question 10

how many f-orbitals are there?

Answer 10

7

Question 11

how many electrons are in an f-orbital?

Answer 11

14

Question 12

what is the total number of electrons that can fill the first shell?

Answer 12

2 (1s)

Question 13

what is the total number of electrons that can fill the second shell?

Answer 13

8 (2s,2p)

Question 14

what is the total number of electrons that can fill the third shell?

Answer 14

18 (3s, 3p, 3d)

Question 15

what is the total number of electrons that can fill the fourth shell?

Answer 15

32 (4s,4p.4d.4f)

Question 16

how are electrons drawn?

Answer 16

one upward arrow and one downward arrow (due to opposite spins)

Question 17

how do you fill the orbitals when 4s and 3d are involved?

Answer 17

4s subshell fills before 3d subshell as 3d has higher energy level
- when removing electrons remove from 4s
- order: 3p,4s,3d

Question 18

what is the electronic configuration of chromium(24)?

Answer 18

1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d4

Question 19

what is the electron configuration of copper(29)?

Answer 19

1s2, 2s2, 2p6, 3s2, 3p6, 4s1, 3d10