WorksheetsPHY & CHEM PROPERTIES OF NOBLE GAS
Total questions: 8
Worksheet time: 3mins
Density of noble gases increasing due to
increasing in volume
increasing in atomic mass
decreasing in atomic mass
decreasing in volume
Why was the melting and boiling point of noble gases are increasing when go down the group
forces of attraction stronger
held by london dispersion forces
more heat required to break the bond
there are dipole-dipole forces
All of the physical properties are _________ as the elements _________ the group
increasing, go upward
decreasing, go down
increasing, go down
decreasing, go upward
The ionisation enthalphy decreases as moves down the group. The chemical reactivity of group 18 elements will
increase
decrease
maintain
Why do Group 18 elements undergo so few chemical reactions?
their valence shells make them nonreactive
they have eight valence electron, which not fill their outer energy level
their filled valence shell are octet, making them extremely nonreactive
What does group 18 react with?
not commonly known as the noble gases and react with other elements
generally chemically inert, means that they do not react with other elements
react with every elements because they have the desired eight total s and p electrons in their outermost energy level
Is it true that group 18 elements do not form compounds easily?
True
Maybe
False
Elements in group 18 have _______ positive electron gain enthalpy and a _______ ionisation enthalpy
high, low
high, high
low, high
low, low
