Chapter 1-Fundamental Ideas

Question 1

What are compounds?

Answer 1

Two or more elements combined together chemically.

Question 2

What are elements made up of?

Answer 2

Only one type of atom.

Question 3

What is an elements atomic number?

Answer 3

The number of protons (equal to the number of electrons)

Question 4

What is an elements mass number?

Answer 4

The number of protons + neutrons aka the total number of particles.

Question 5

Is the mass number at the bottom or top of an element?

Answer 5

Top

Question 6

Is the atomic number at the bottom or the top of the element?

Answer 6

Bottom

Question 7

Why is diffusion through a liquid slower than diffusion through a gas?

Answer 7

Because the particles of a liquid move around more slowly and there is less space between the particles.

Question 8

Gas ➡️ Solid

Answer 8

Deposition

Question 9

Solid ➡️ Gas

Answer 9

Sublimation

Question 10

Solid ➡️ Liquid

Answer 10

Melting

Question 11

Liquid ➡️ Solid

Answer 11

Freezing

Question 12

Liquid ➡️ Gas

Answer 12

Evaporation

Question 13

Gas ➡️ Liquid

Answer 13

Condensation

Question 14

What are mixtures?

Answer 14

Two or more substances mixed together.

Question 15

Isotopes

Answer 15

Atoms of the same element with different numbers of neutrons.