Periodic Table of Elements

Front

What is an element?

Back

An element is a substance that cannot be broken down into simpler substances.

Front

Is Iron (Fe) an element or a compound?

Back

Iron (Fe) is an element.

Front

What is the chemical symbol for Lithium?

Back

The chemical symbol for Lithium is Li.

Front

What is a chemical symbol?

Back

A chemical symbol is a one or two letter abbreviation used to represent an element.

Front

What does the number at the top of an element box represent?

Back

The number at the top of an element box represents the atomic number.

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom.

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 periodic table?

Back

The periodic table is a tabular arrangement of elements organized by increasing atomic number.

Front

What are groups in the periodic table?

Back

Groups are vertical columns in the periodic table that contain elements with similar chemical properties.

Front

What are periods in the periodic table?

Back

Periods are horizontal rows in the periodic table that indicate the number of electron shells in the elements.