Chapter 12: Inorganic chemistry

Question 1

What is the atomic number of an element?

Answer 1

The number of protons in the nucleus of an atom

Question 2

True or False: Isotopes of an element have the same number of protons but different number of neutrons.

Answer 2

True

Question 3

What is the chemical symbol for Sodium?

Answer 3

Na

Question 4

What is the charge of a proton?

Answer 4

+1

Question 5

What is the charge of an electron?

Answer 5

-1

Question 6

What is the charge of a neutron?

Answer 6

0

Question 7

What is the most abundant element in the Earth’s crust?

Answer 7

Oxygen

Question 8

What is the formula for water?

Answer 8

H2O

Question 9

What is the pH scale used to measure?

Answer 9

Acidity or basicity of a solution

Question 10

What is the chemical symbol for Potassium?

Answer 10

K

Question 11

What is the chemical symbol for Calcium?

Answer 11

Ca

Question 12

What is the chemical symbol for Carbon?

Answer 12

C

Question 13

What is the chemical symbol for Magnesium?

Answer 13

Mg

Question 14

What is the chemical symbol for Phosphorus?

Answer 14

P

Question 15

What is the chemical symbol for Sulfur?

Answer 15

S

Question 16

What is the chemical symbol for Chlorine?

Answer 16

Cl

Question 17

What is the chemical symbol for Mercury?

Answer 17

Hg

Question 18

What is the chemical symbol for Aluminum?

Answer 18

Al

Question 19

Four most common elements of life

Answer 19

Hydrogen, oxygen, nitrogen, carbon
“HONC”

Question 20

Attraction between particle charges on polar molecules (very weak individually, but powerful collectively)

Answer 20

Hydrogen bond

Question 21

Equal sharing of valence electrons based on equal electronegativity of two atoms

Answer 21

Nonpolar covalent bonds