Elements
Compounds and Mixtures
Chemical Symbols and Formulas
Atoms
Most Abundant Elements
100

What is the chemical symbol for the element Lithium?

What is Li?

100

Air

What is a mixture?

100

Iron

What is Fe

100

The subatomic particles that make up an atom

What are proton, neutron, and electron?

100

Earth's Crust

What is oxygen?

200

How many different types of atoms make up an element?

What is one?

200

Water

What is a compound?

200

Oxygen

What is O?

200

What subatomic particle(s) are found in the nucleus?

What are proton and neutron?

200
Ocean

Whatis oxygen?

300

What kind of bond holds elements together to form compounds?

What is a chemical bond?

300

Salt

What is a compound?

300

Nitrogen

What is N?

300

Where electrons are found

What is electron cloud?

300

Living Matter

What is oxygen?

400

Elements are represented by what on the periodic table?

What are chemical symbols?

400

Cereal

What is a mixture?

400

Water

What is H2O?

400

Positive subatomic particle

What is proton?

400

Atmosphere

What is nitrogen?

500

How many total elements are represented in this compound?  H2O2?

What is 2?

500

What is the difference between a compound and a mixture?

 A mixture can be seperated easily and a compound cannot.

500

Salt

What is NaCl?

500

Negative subatomic particle

What is electron?

500

Why is oxygen the most abundant element in Earth's crust, Living Things, and the Ocean?

Because oxygen  goes in a cycle:  living things decay to Earth's Crust and the same thing happens in the oceans.