Counting Atoms

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.

Front

What are protons?

Back

Protons are positively charged particles found in the nucleus of an atom.

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is a chemical formula?

Back

A chemical formula is a way of expressing the number and type of atoms in a molecule using symbols and numbers.

Front

What does the subscript in a chemical formula indicate?

Back

The subscript indicates the number of atoms of the element in the molecule.

Front

How many protons does Nitrogen have?

Back

Nitrogen has 7 protons.

Front

What is the formula for Aluminum Nitride?

Back

The formula for Aluminum Nitride is AlN.

Front

How many Aluminum atoms are in Al₂O₃?

Back

There are 2 Aluminum atoms in Al₂O₃.

Front

What elements are present in C₂H₈O?

Back

C₂H₈O contains Carbon (C), Hydrogen (H), and Oxygen (O).

Front

How many Sodium atoms are in Na₂CO₃?

Back

There are 2 Sodium atoms in Na₂CO₃.