Earth Chemistry: Final Exam

Question 1

The horizontal rows in the periodic table are called _________.

Answer 1

Periods

Question 2

The most common element in the earth’s crust is _________.

Answer 2

Oxygen (46.6%)

Question 3

Density, ductility, and hardness describe the ________ __________ of matter

Answer 3

Physical

Properties

Question 4

The subatomic particles located inside the nucleus of an atom are _______ and ________.

Answer 4

Protons

Neutrons

Question 5

Subatomic particles with a negative charge and almost no mass are _________.

Answer 5

Electrons

Question 6

The vertical columns in the periodic table are called ______.

Answer 6

Groups

Question 7

Carbon-12 and carbon-14 are ________ of the element carbon.

Answer 7

Isotopes

Question 8

The change in water from the solid ice to a liquid is an example of a _____ ______.

Answer 8

Phase

Change

Question 9

The compound shown in the chemical formula Fe2(small 2)O3(small 3) is made up of______.

Answer 9

2 atoms of iron and 3 atoms of oxygen

Question 10

Which is an example of a mixture?: milk, water, table salt, or carbon dioxide.

Answer 10

Milk