Chemistry- Elements (7th Grade Science)

Front

What are the horizontal rows in the periodic table called?

Back

Periods.

Front

Do protons have a charge?

Back

No, protons have a positive charge.

Front

Where are the most reactive metals found in the periodic table?

Back

In Group 1, the first column on the left.

Front

What happens to the properties of elements in a row of the periodic table?

Back

They change in a pattern.

Front

What do elements in a column of the periodic table have in common?

Back

They have similar properties.

Front

What is the charge of neutrons?

Back

Neutrons have no charge.

Front

What is the significance of Group 1 in the periodic table?

Back

It contains the most reactive metals.

Front

How are elements arranged in the periodic table?

Back

By increasing atomic number.

Front

What is the term for the vertical columns in the periodic table?

Back

Groups.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.