Periodic Table : Group 1

Sodium and potassium are a member of

• Halogen

• Inert gas

• Alkali metal

• Alkali Earth Metal

Proton number of sodium atom is 11. What will be its electron arrangement?

• 2,8,1

• 2:8:1

• 2.8.1

Element X has electron arrangement 2.8.18.8.1.

X belongs to

• Group 1

  Period 4

• Group 1

  Period 5

Element in Group 1 will donate its 1 valence electron to become

• +1 ion

• -1 ion

Sodium will react with oxygen to produce sodium oxide.

What will be the correct equation for this reaction.

• Na + O2 --> NaO

• Na + O2 --> Na2O

• 4Na + O2 --> 2Na2O

Going down Group 1, density of element

• Increase

• Decrease

Going down Group 1 , reactivity of elements

• Increase

• decrease

Going down Group 1 melting and boiling point of elements

• Increase

• Decrease

To achieve stable electron octet arrangement, potassium atom will

• Donate 1 valence electron

• Accept 1 electron

Element Y more reactive than potassium.

What will be position the position of element Y in Group 1?

• Above potassium

• Below potassium