12. Use your Periodic Table and locate the element that is in Group 18, in the second Period.
A. What is the name of that element?
B. What is the name of the Group that element is in?
C. What is the state of matter (solid, liquid or gas) of that element?
D. What is the reactivity of that element?
Answers: 2
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12. Use your Periodic Table and locate the element that is in Group 18, in the second Period.
A. Wh...
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