The Relationship between the Periodic Table and Atomic Structure

Front

What is the Periodic Table?

Back

A tabular arrangement of chemical elements, organized by increasing atomic number, which reflects the periodic trends in their properties.

Front

What does the atomic number of an element represent?

Back

The number of protons in the nucleus of an atom, which determines the element's identity.

Front

How many energy levels can an atom have?

Back

Atoms can have multiple energy levels, typically ranging from 1 to 7, depending on the element.

Front

What are valence electrons?

Back

Electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

How many valence electrons do elements in Group 1 have?

Back

1 valence electron.

Front

How many valence electrons do elements in Group 2 have?

Back

2 valence electrons.

Front

How many valence electrons do elements in Group 13 have?

Back

3 valence electrons.

Front

How many valence electrons do elements in Group 17 have?

Back

7 valence electrons.

Front

What is the significance of an element's group number in the Periodic Table?

Back

The group number indicates the number of valence electrons and helps predict the element's chemical behavior.

Front

What is a mass number?

Back

The total number of protons and neutrons in an atom's nucleus.