Which of the following is the most reactive element of group 17?
Anonymous Quiz
17%
Oxygen
21%
Sodium
52%
Fluroine
10%
Magnesium
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Element X forms a chloride with the formula XCl2, which is solid with a high melting point. X would most likely be in the same group of the Periodic Table as
Anonymous Quiz
43%
Na
40%
Mg
14%
Al
3%
Si
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What happens to the electropositive character of elements on moving from left to right in a periodic table?
Anonymous Quiz
43%
Increase
48%
Decrease
6%
Both
2%
None
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What is the other name for group 18th elements?
Anonymous Quiz
64%
Noble gases
14%
Alkali metal
8%
Alkali earth metal
14%
Halogen
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Which of the following elements has 2 shells, and both are completely filled?
Anonymous Quiz
42%
Helium
39%
Neon
13%
Calcium
7%
Boron
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