Be²⁺ is isoelectronic with which of the following ions?

Be Is Isoelectronic With Which Of The Following Ions Chemistry Question

Be²⁺ is isoelectronic with which of the following ions?

Options

(a) H⁺
(b) Li⁺
(c) Na⁺
(d) Mg²⁺

Correct Answer:

Li⁺

Explanation:

Be²⁺= (4-2) = 2
is isoelectronic with Li⁺ (3-1 =2)
Since both have same number of electrons in their outermost shell.

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Topics: Structure of Atom (90)
Subject: Chemistry (2512)

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