Periodic Table - Groups and Periods

Front

What is the main purpose of the periodic table?

Back

To organize elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What are groups in the periodic table?

Back

Vertical columns that contain elements with similar chemical properties and the same number of valence electrons.

Front

What are periods in the periodic table?

Back

Horizontal rows that indicate the number of energy shells an atom has.

Front

How many groups are there in the periodic table?

Back

There are 18 groups.

Front

How many periods are there in the periodic table?

Back

There are 7 periods.

Front

What is a valence electron?

Back

Electrons in the outermost shell of an atom that determine its chemical properties.

Front

Why do elements in the same group behave similarly?

Back

Because they have the same number of valence electrons.

Front

What element is in group 2, period 6?

Back

Barium (Ba).

Front

What is the maximum number of valence electrons an atom can have?

Back

8 valence electrons.

Front

What is the significance of the atomic number in the periodic table?

Back

It determines the identity of an element and its position in the periodic table.