Answer:
a) the element belongs to group 2
b) see image attached
c) Magnesium
d) X3N2
Explanation:
Any ion with the formula X^2+ was derived from group 2 elements. The group two element found in period 3 is magnesium alone.
Since the nitride ion has a valency of -3 and X^2+ has a valency of +2 , then a compound formed between X^2+ and the nitride ion will have the formula X3N2.
Warm air from above the water rises and is replaced by the cool air from the shore
Answer:
atoms must balance positive and negative particles
Explanation:
Hey there!
The answer as well as the explanation is in the image attached. Let me know if there's anything you're unable to see.
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