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Identify the elements that fit the following descriptions:

Chapter 8, Problem 1RC

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QUESTION:

Identify the elements that fit the following descriptions:

(a) An alkaline earth metal ion that is isoelectronic with Kr.

(b) An anion with a –3 charge that is lscelectrcnic with \(\mathrm {K^+}\).

(c) An ion with a +2 charge that is isoelectronic with \(\mathrm{Co^{3+}}\).

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QUESTION:

Identify the elements that fit the following descriptions:

(a) An alkaline earth metal ion that is isoelectronic with Kr.

(b) An anion with a –3 charge that is lscelectrcnic with \(\mathrm {K^+}\).

(c) An ion with a +2 charge that is isoelectronic with \(\mathrm{Co^{3+}}\).

ANSWER:

Step 1 of 4

The isoelectronic species are the species with the same number of electrons.

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