Periodic Table - Groups and Periods

Front

What is a group in the periodic table?

Back

A group is a vertical column in the periodic table that contains elements with similar chemical properties.

Front

What is a period in the periodic table?

Back

A period is a horizontal row in the periodic table that indicates the number of energy shells an atom has.

Front

How many groups are there in the periodic table?

Back

There are 18 groups in the periodic table.

Front

How many periods are there in the periodic table?

Back

There are 7 periods in the periodic table.

Front

What element is in group 2, period 6?

Back

Ba - Barium.

Front

What period does the element I - Iodine belong to?

Back

Iodine belongs to period 5.

Front

How many energy shells does Fe - Iron have?

Back

Iron has 4 energy shells.

Front

Which element is more reactive: Cs - Cesium or He - Helium?

Back

Cs - Cesium is more reactive.

Front

What is the atomic number of an element?

Back

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

Front

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

Back

The layout of the periodic table reflects the periodic trends in element properties, such as reactivity and atomic size.