Group 18 Elements

What is the group number of Group 18 elements in the periodic table?

• 10

• 17

• 18

• 5

Muthu wants to decorate his restaurant using colourful electric light bulbs to attract more customers. Which of the following gases is suitable to be used to fill the light bulbs?

• Xenon

• Argon

• Krypton

• Neon

Which statements about the elements in Group 18 in the Periodic Table are corrext?

I) They are unreactive elements

II) They can dissolve in water

III) They are monoatomic gases

IV) They cannot conduct electricity and heat

• I an II only

• II and IV only

• I,II and III only

• I,III and IV only

Which of the following elements Group 18 does not have octet electron arrangement?

• Argon

• Krypton

• Helium

• Neon

Which property of Group 18 elements increases when going down the Group in the Periodic Table?

• Forces of attraction

• Reactivity

• Solubility in water

• Electrical conductivity

Neon (proton number =10) is inert to any chemical reaction because

• It is light

• the atom has achieved stable octet electron arrangement

• the atoms has achieved stable duplet electron arrangement

• it is located in Group 18