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12.02.2020 •
Chemistry
What happens to valence electrons when ionic bonds are formed
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Ответ:
The answer to your question is below
Explanation:
Ionic bonds are when a metal and a nonmetal attach to form a compound. The difference in electronegativity of these compounds is higher than 1.7.
In this kind of bond, metals lost their valence electrons to obtain stability and nonmetals gain those electrons to gain stability.
Ответ:
The correct answer is option C.
Explanation:
IMA (Ideal Mechanical advantage) is defined as ratio of input distance to the output distance.
Radius of the handle of the sharper =
=1.5 m
Radius of the sharping mechanism =
=0.5 m
3 is the IMA of the pencil sharpener. Hence, option C is correct.