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GenaCL600 [577]
2 years ago
12

PLZ HELP!

Chemistry
1 answer:
kaheart [24]2 years ago
5 0

Answer:

You

Explanation:

When you divide 100 by 15 you get 6.6666666. When you divide 100 by 14 you get 7.14.

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Which of the following elements is the least reactive metal? Sodium, Rubidium, Chlorine, and Magnesium.​
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First off chlorine is not a metal so you can ignore that one.

Sodium and Rubidium are in group 1 of the periodic table and Magnesium is in group 2.

Group one metals are more reactive than group two because it is harder for the group two metals to lose their 2 valence (outer most) electrons.

As you go down group 1 there is an increase in the reactivity this is because as you go down there is an increase in the atomic radius which leads to more shielding. This weakens the electrostatic forces of attraction making it easier to lose the outermost electrons, therefore they are more reactive.
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