Hunting the Elements

Front

What are the elements in the column just before the stable noble gases called?

Back

Halogens

Front

How many unique substances (elements) are there?

Back

118

Front

Who is known as the grandfather of the periodic table?

Back

Dmitri Mendeleev

Front

What percentage of the elements are metals?

Back

75%

Front

What are the properties of metals?

Back

Shiny, malleable materials that conduct electricity.

Front

What are the elements that are not metals called?

Back

Nonmetals

Front

What is the term for elements that have properties of both metals and nonmetals?

Back

Metalloids

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the significance of the periodic table?

Back

It organizes elements based on their atomic number and properties.

Front

What are alkali metals?

Back

The group of elements in the first column of the periodic table, known for being highly reactive.