When a potassium atom forms an ion, it loses one electron. what is the electrical charge of the potassium ion?

a.
-2

b.
-1

c.
+2

d.
+1

The crust of earth may a- continets and ocean floors. b-continents only. c-layers of sedimentary rocks and continents. d-all of the above

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive