Isoelectronic species are elements or ions that have the same, or equal number o

Question

Isoelectronic species are elements or ions that have the same, or equal number of electrons.

Isoelectronic molecular species must not only have the same number of electrons, but they must also have the same connectivity of the atoms.

For the first question;
NH4+ ion has a central nitrogen atom and four peripheral hydrogen atoms all connected to the central nitrogen atom.
NH4+ has 7 electrons from the nitrogen atom, 4 electrons from the hydrogen atoms and -1 electron for the positive charge.
So, total electrons = 7 + 4 - 1 = 10 electronsl.

CH4 has a central carbon atom and four peripheral hydrogen atoms all connected to he central carbon atom. CH4 has 6 electrons from the carbon atom + 4 electrons from the hydrogen atoms = 10 electrons total.

So, CH4 and NH4+ are isoelectronic species.

For the 2nd question, C6H6 is isoelectronic to B3N3H6. Both have 42 electrons and the same connectivity of atoms, i.e. a ring made up of the heavier atoms with one hydrogen atom connected to each one of the heavier ring atoms.

For the 3rd question, CO and N2 are isoelectronic (14 electrons)

Explanation / Answer

Question 2 (of 12) Question Be sure to answer all parts. As For each of the species below, identify one or more of the species in the list below it that is isoelectronic to it. Isoelectronic to NH4 Isoelectronic to CHs Isoelectronic to Co CH4 NH, CH4 CO NH4+ Type here to search

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