Atoms Elements Compounds Test Review

The two major elements that make up the Earth's atmosphere are:

• Hydrogen and Oxygen

• Carbon and Oxygen

• Carbon and Oxygen

• Nitrogen and Oxygen

The two major elements that make up the Earth's oceans are:

• Oxygen and Hydrogen

• Chlorine and Sodium

• Oxygen and chlorine

• Sodium and Oxygen

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-1

What are the two most abundant elements that make up the Earth's crust?

• Aluminum and iron

• Calcium and sodium

• Oxygen and silicon

• Hydrogen and potassium

Tags

NGSS.MS-PS1-1

What are the three most common elements found in the human body?

• Silicon

• Aluminum

• Carbon

• Oxygen

• Hydrogen

What is the only element found in Earth's atmosphere, crust, oceans, and the human body?

• Hydrogen

• Oxygen

• Silicon

• Carbon

The atomic mass of an element equals the number of -

• protons

• protons + neutrons

• electrons

• protons + electrons

How many protons does Fluorine (F) have?

• 9

• 10

• 19

Tags

NGSS.MS-PS1-1

What is the atomic number for Iron (Fe)?

• 30

• 26

• 82

• 56

What is the atomic mass of Calcium (Ca)?

• 40

• 20

• 802

• 60

How many protons are in one atom of Copper (Cu)?

• 64

• 63

• 29

• 35