When chromium loses two electrons, its configuration changes to

Chemistry

1 answer:

damaskus [11]3 years ago

3 0

Electronic configuration of cromium is

Cr-[Ar]4s¹3d⁵

When cromium loses two electrons it becomes Cr⁺².

So its electronic configuration becomes,

Cr⁺²-[Ar]3d⁴

One electron will go from 4s orbital and one electron will go from 3d orbital.

So the answer here is D. [Ar]3d⁴ -because after losing 2 electrons electronic configuration of cromium becomes [Ar] 3d⁴.

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Given the following balanced equation, determine the rate of reaction with respect to [O2]. If the rate of formation of O2 is 7.

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Answer: The rate of the loss of $O_3$ is 0.52M/s

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Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

The rate in terms of reactants is given as negative as the concentration of reactants is decreasing with time whereas the rate in terms of products is given as positive as the concentration of products is increasing with time.

$2O_3(g)\rightleftharpoons 3O_2(g)$