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NEET2014ChemistryStructure of AtomActual

B e 2 + is isoelectronic with which of the following ions?

Options

  1. AH +
  2. BL i +
  3. CN a +
  4. DM g 2 +

Correct answer

B. L i +

Step-by-step solution

Isoelectronic species are those species that have the same number of electrons. Be 2 + 4 = 1 s 2 = 2 e - Li + 3 =   1 s 2 =   2 e -

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