C1 - Group 0 Elements

Question 1

Facts about group 0 elements

Answer 1

• They dont react with very much
• Cant see it (as it is a gas)
• Monoatomic gases (single atoms not bonded with each other)
• Non-flammable (inert)
• Colourless gases at room temperature

Question 2

Why are noble gases so unreactive?

Answer 2

All noble gases have 8 electrons in their outer energy level apart from helium which has two,giving them a full outer shell.As their outer shell is energetically stable they dont have to lose nor gain electrons to become stable.This means that they are more or less inert - they dont react with much at all

Question 3

Patterns in the properties of noble gases as you go down the group

Answer 3

• The relative atomic masses increase
• The boiling points increase as you move down the group

(There is an increase in boiling point due to an increase in electrons in each atom leading to greater intermolecular forces between them which need to be overcome)

Question 4

Neon is a gas at 25 C,predict what state helium is at this temperature

Answer 4

25C

Question 5

Radeon and Cryptom have boiling points of -62 and -153.Predict the boiling point of xenon

Answer 5

Xenon is between radeon and krypton in the boiling point so you can add both boiling points and divide by 2

(-153) + (-62) = - 215 / 2 = - 107.5C = -108C