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Compounds of Pnictogens-Trends

Can phosphoru...

Question

Can phosphorus with outer electronic configuration 3s2, 3p3 form PH5?

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Solution

No, PH5 cannot exist in nature. This is because the high enthalpies of atomization of dihydrogen and the negative value of the electron gain enthalpy for hydrogen do not exhibit the highest oxidation state of P. Hence, the +5 oxidation state is not exhibited by P.

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Similar questions

Q. Phosphorus cannot form

P H_{5}

with its outer electronic configuration as

3 s^{2} 3 p^{3}

Q. The electronic configuration of an element is

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{3}

. What is the atomic number of the element, which is just below the above element in the periodic table?

Q. The electronic configuration of an element 'A' is

[N e] 3 s^{2}

. With which of the following elements it can form an ionic compound of the type

A X_{2}

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Q. Name the elements with the following electronic configuration.

{1 s}^{2} {2 s}^{2} {2 p}^{6} {3 s}^{2} {3 p}^{1}

Q. Assertion : An element X with the electronic configuration

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{4}

can be expected to form a compound of the type

H_{2} X

Reason : Two additional electrons fill the valence shell of an element with outer electronic configuration

3 s^{2} 3 p^{4}

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