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Greeley [361]
3 years ago
5

Periodic law states that when the elements are arranged according to their atomic numbers, this allows elements with similar pro

perties to appear at regular intervals. Predict the group of elements and their number of valance electrons that will combine in a 3:2 ratio to with calcium
Chemistry
1 answer:
jeyben [28]3 years ago
3 0

Answer:

is a mutiply choice answer just to be specific

Explanation:

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c.

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Which change happens when a fan is turned on?
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D. Electrical energy is changed into mechanical energy

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When I2 and FeCl2 are mixed together, iodine (I) cannot replace chlorine (Cl) in the compound because iodine is lower on the per
Nata [24]

Answer: The given statement is true.

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Reactivity of elements is the tendency of the elements to gain or loose electrons. The reactivity decreases down the group in a periodic table.

In the given reaction, Iodine and chlorine are the elements of the same group in the periodic table and iodine lies below chlorine in the group. So, the reactivity of iodine is less than the reactivity of chlorine.

Hence, in the given reaction, iodine will not replace chlorine because it lies below in the periodic table.

FeCl_2+I_2\rightarrow \text{No reaction}

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