Classifying the Periodic Table

What is the first group of elements in the periodic table called?

• lanthanides

• alkali metals

• transition metals

• noble gases

Which group of elements is known for their high reactivity with water?

• transition metals

• noble gases

• halogens

• alkali metals

What is the name of the group of elements that are found in the middle of the periodic table?

• Halogens

• Alkali metals

• Noble gases

• Transition metals

Which group of elements is known for their stable and unreactive nature?

• Noble gases

• Halogens

• Transition metals

• Alkali metals

What is the name of the horizontal row in the periodic table?

• Period

• Level

• Group

• Category

How many periods are there in the periodic table?

• 12

• 10

• 7

• 5

What is the name of the group of elements that are found on the far right of the periodic table?

• Noble gases

• Transition metals

• Alkali metals

• Halogens

How many groups are there in the periodic table?

• 20

• 12

• 25

• 18