Periodic Table

Front

What is the atomic number of an element?

Back

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

Front

What does the atomic mass of an element represent?

Back

The atomic mass represents the average mass of an element's atoms, taking into account the relative abundance of its isotopes.

Front

What is a chemical symbol?

Back

A chemical symbol is a one or two-letter abbreviation used to represent an element on the periodic table.

Front

How many protons does an atom of Oxygen have?

Back

8

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NGSS.MS-PS1-1

Front

What is the chemical symbol for Gold?

Back

Au

Front

What do we call elements in the same column of the periodic table?

Back

They are called a group or family.

Front

What is the significance of the periodic table's arrangement?

Back

Elements are arranged by increasing atomic number, which reflects their properties and relationships.

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.

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NGSS.MS-PS1-1

Front

What is the term for the horizontal rows in the periodic table?

Back

They are called periods.

Front

What is the main characteristic of noble gases?

Back

Noble gases are inert and do not readily react with other elements due to having a full valence shell.

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NGSS.HS-PS1-1