Counting Atoms

Front

How many Strontium atoms are in the compound?

Back

6

Front

How many Hydrogen atoms are in 4H₂O?

Back

8

Front

What is a pure substance that cannot be broken down into simpler substances?

Back

Element

Front

How many Phosphorous atoms are there in the compound?

Back

6

Front

How many elements are in C₆H₁₂O₆?

Back

3

Front

Define an atom.

Back

The smallest unit of a chemical element, consisting of a nucleus surrounded by electrons.

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

Front

What is a compound?

Back

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

Front

How do you determine the number of atoms in a chemical formula?

Back

Count the subscripts for each element in the formula.

Front

What does the subscript in a chemical formula represent?

Back

The number of atoms of the element in one molecule of the compound.