Periodic Table of Elements

Front

What is the chemical symbol for Sodium?

Back

Na

Front

What does the atomic number represent in the Periodic Table?

Back

The number of protons in an atom's nucleus.

Front

What is the chemical symbol for Iron?

Back

Fe

Front

What is the atomic mass of an element?

Back

The average mass of an element's isotopes, measured in atomic mass units (amu).

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is the chemical symbol for Lithium?

Back

Li

Front

How are elements arranged in the Periodic Table?

Back

Elements are arranged in order of increasing atomic number.

Front

What is the atomic number of Carbon?

Back

6

Front

What does the term 'period' refer to in the Periodic Table?

Back

A horizontal row of elements in the Periodic Table.

Front

What does the term 'group' refer to in the Periodic Table?

Back

A vertical column of elements in the Periodic Table.