Unit 3 (Part 1) Exam Review - Structure of Matter

Front

What is the correct symbol for calcium?

Back

Ca

Front

What two types of measurements make up DENSITY?

Back

Mass and Volume

Front

This is an example of?

Back

Mixture of compounds

Front

What is the volume of the fish?

Back

6.0 ml

Front

How many electrons are in this element? (Hint: # electrons = atomic #)

Back

19

Front

Define an element.

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a compound?

Back

A substance formed when two or more elements are chemically bonded together.

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically bonded.

Front

What is the formula for density?

Back

Density = Mass / Volume

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom, which determines the element.