[26 Mar 2024] Chapter 11 The Periodic Table

Which of the following elements below is found in Period 3 of the Periodic Table?

• Helium

• Boron

• Magnesium

• Gallium

All the elements in Group 14 have ____ electrons in their valence shell.

Note: Spell out your answer.

Which Group of the Periodic Table does Zinc belong to?

• Group 1

• Group 13

• Group 14

• Group 12

The elements in the Period 3 always contain

• the same number of valence electrons.

• the same number of electron shells.

• the same number of protons in the nucleus.

• the same number of neutrons in the nucleus.

The element with proton number 3 is most likely to have similar properties to the element with proton number

• 5

• 11

• 15

• 18

Lithium is first element in Group 1 of the Periodic Table.

Which statement about lithium is true?

• It is the most reactive Group 1 element.

• It is a dense metal.

• It does not react with oxygen.

• It reacts vigorously with water to produce hydrogen.

Which of the following properties applies to Group 1 metals?

• Low melting points

• Strong and hard

• High density

• Do not conduct electricity

Which of the following metals is the most reactive?

• Calcium

• Magnesium

• Potassium

• Francium

Which of the following properties is not true of Group 1 metals?

• Low melting points

• Strong and hard

• Low density

• Conduct electricity