Chemistry, 28.01.2020 08:31 maylasia

Select the atoms whose ions have an electron configuration of nd5(n = 3, 4, 5 for example, the 2+ ion for v ends the electron configuration with 3d 3.
ir
rn
fe
pa
y
re

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Answer from: cascyrio2002

The atoms whose ions have electronic configuration as nd^5 are Iridium (Ir), Iron (Fe) and Rhenium (Re)

Explanation:

An ion is formed when a neutral atom looses or gains electrons.

When an atom looses electrons, it results in the formation of positive ion known as cation.When an atom gains electrons, it results in the formation of negative ion known as anion.

For the given elements:

Iridium: The electronic configuration of this element is [Xe]6s^25d^7 . The stable oxidation state of iridium is +4.

The electronic configuration of $Ir^{4+}$ is [Xe]5d^5

Radon: The electronic configuration of this element is $[Xe]6s^25d^{10}6p^6$ . This is a stable element.

Iron: The electronic configuration of this element is [Ar]4s^23d^6 . The stable oxidation state of iron is +3.

The electronic configuration of $Fe^{3+}$ is [Ar]3d^5

Protactinium: The electronic configuration of this element is [Rn]7s^26d^15f^2 . The stable oxidation state of protactinium is +3.

The electronic configuration of $Pa^{3+}$ is [Rn]7s^2

Ytterium: The electronic configuration of this element is [Kr]5s^24d^1 . The stable oxidation state of ytterium is +3.

The electronic configuration of $Y^{3+}$ is $[Ar]4s^23d^{10}4p^6$

Rhenium: The electronic configuration of this element is [Xe]6s^25d^5 . The stable oxidation state of rhenium is +2.

The electronic configuration of $Re^{2+}$ is [Xe]5d^5

Hence, the atoms whose ions have electronic configuration as nd^5 are Iridium (Ir), Iron (Fe) and Rhenium (Re)

Answer from: Quest

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and conduct electricity easily while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.

Answer from: Quest

Niye yedi puan mal oglu mal

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Select the atoms whose ions have an electron configuration of nd5(n = 3, 4, 5 for example, the 2+ i...

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