5) Electrons And Bonding

Question 1

Define atomic orbital.

Answer 1

A region around the nucleus that can hold up to two electrons with opposite spins.

Question 2

Give the shape of an s-orbital.

Answer 2

Spherical

Question 3

Give the shape of a p-orbital.

Answer 3

Dumbbell-shaped

Question 4

Give the number of orbitals in an s-subshell.

Answer 4

1

Question 5

Give the number of orbitals in a p-subshell.

Answer 5

3

Question 6

Give the number of orbitals in a d-subshell.

Answer 6

5

Question 7

Give the number of electrons in an s-subshell.

Answer 7

2

Question 8

Give the number of electrons in a p-subshell.

Answer 8

6

Question 9

Give the number of electrons in a d-subshell.

Answer 9

10

Question 10

Name two exceptions to the order in which shells are filled.

Answer 10

Cr24 and Cu29

Question 11

What is the end of Cr24’s electron configuration?

Answer 11

3d5 4s1

Question 12

What is the end of Cu29’s electron configuration?

Answer 12

3d10 4s1

Question 13

Define ionic bonding.

Answer 13

Electrostatic attraction between positive and negative ions.

Question 14

Define covalent bonding.

Answer 14

The electrostatic attraction between a shared pair of electrons and the nuclei of the bonded atoms.

Question 15

Define dative covalent bonding.

Answer 15

Covalent bonding where both electrons are supplied by one of the bonding atoms.

Question 16

Define multiple covalent bonding.

Answer 16

Covalent bonding where multiple electron pairs are shared.

Question 17

Define average bond enthalpy.

Answer 17

A measurement of covalent bond strength.

Question 18

Define expanded octet.

Answer 18

When an atoms has more than eight valence electrons.