Atoms, Elements and the Periodic Table

Front

What does the atomic number represent in an atom?

Back

The atomic number represents the number of protons in an atom.

Front

Where are metals located on the Periodic Table?

Back

Metals are found on the left to middle of the Periodic Table.

Front

How many neutrons are in a Gold atom?

Back

A Gold atom has 118 neutrons.

Front

What is the number of protons in Beryllium?

Back

Beryllium has 4 protons.

Front

If an atom has an atomic mass of 11 and contains 5 electrons, what is its atomic number?

Back

The atomic number is 5.

Front

What are the three main categories of elements on the Periodic Table?

Back

The three main categories are metals, nonmetals, and metalloids.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is the significance of the atomic mass of an element?

Back

The atomic mass indicates the average mass of an atom of an element, accounting for isotopes.

Front

What are isotopes?

Back

Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons.

Front

What is a compound?

Back

A compound is a substance formed when two or more elements chemically bond together.