Noble Gases (Grade 10)
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Noble Gases
1.
Which of the following elements does not react with others?
- radium
- lithium
- xenon
- calcium
2.
Which of the following statements describes what all of the elements in Group 18 have in common?
- They are all gases.
- They all consist of one atom only.
- They all have 8 valence electrons.
- Both a and b are correct.
3.
Which of the following elements DOES NOT obey the octet rule?
- radon
- xenon
- argon
- helium
4.
Which of the following elements from Group 18 can react with fluorine to form a compound with the general formula [math]XF_2[/math]?
- helium
- xenon
- krypton
- argon
5.
Which of the following terms can be used to describe helium?
- the octet rule
- the common ion effect
- the duet rule
- (a) and (c)
6.
Which of the following statements correctly describes the behavior of elements that are NOT in Group 18?
- They will become atoms in the excited state.
- They will become atoms in the ground state.
- They will lose, gain, or share electrons to form a configuration that matches that of a noble gas.
- They will lose or gain electrons, only.
7.
Imagine that the temperature in a room is set to 118 K, below that of the temperature that characterizes STP. Which of the following elements from Group 18 would NOT be a gas at this temperature?
- helium
- neon
- argon
- krypton
8.
When sulfur becomes an ion, which noble gas' electron configuration does it match up with?
- argon
- helium
- neon
- xenon
9.
Explain why noble gases are generally nonreactive.
10.
Neon has a total of 10 valence electrons.
- True
- False
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