Potassium ions (K^+#) have a positive charge. What happens to a potassium atom's electrons when it becomes an ion?

Answer 1

Well, usually they have caused a reduction in another reagent.

A tiny piece of potassium is dropped into water, causing some of the water to be reduced to dihydrogen. This can be represented by two redox rxns:

#K(s) rarr K^(+) + e^-#; #"oxidation"#
#H_2O(l) + e^(-) rarr 1/2H_2 + HO^-#; #"reduction"#

In general,

#K(s) + H_2O(l) rarr KOH(aq) + 1/2H_2(g)#

Lithium or sodium work better in a teaching lab to illustrate this reaction; potassium produces a lot of spritz and sparx.

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Answer 2

An atom of potassium loses one electron when it transforms into an ion (K^+).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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