Which of These Species Make an Isoelectronic Pair: Cl^-, O^2-

question 41

Multiple Choice

Which of these species make an isoelectronic pair: Cl^-, O^2-, F, Ca²⁺, Fe³⁺?

• A) Ca²⁺ and Fe³⁺
• B) O^2- and F
• C) F and Cl^-
• D) Cl^- and Ca²⁺
• E) None of the species are part of an isoelectronic series.

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Definitions:

Cost of Capital

The rate of return that a business must achieve in order to generate value, representing the opportunity cost of investing capital in a specific business rather than in an alternative venture.

Average Return

A statistical measure representing the mean outcome or yield from an investment over a given period of time.

NPV

Net Present Value; a calculation used to determine the value of an investment by subtracting the present values of cash outflows (including initial cost) from the present values of cash inflows over a period of time.

IRR

Internal Rate of Return; the discount rate that makes the net present value (NPV) of all cash flows from a particular project equal to zero.