From metals of what group should electrons to be liberated most easily? a. Group

Question

From metals of what group should electrons to be liberated most easily?



a. Group 1

b. Group 2

c. Group 7

d. Group 8



The following metals are listed in order of decreasing chemical activity: potassium, sodium, calcium, magnesium. Where would you place cesium in this list?



a. potassium, sodium, cesium, calcium, magnesium

b. potassium, sodium, calcium, cesium, magnesium

c. potassium, sodium, calcium, magnesium, cesium

d. cesium, potassium, sodium, calcium, magnesium




What is characteristic about the outer electron shells of the alkali metals?



a. Each outer shell has a single electron outside filled inner shells.

b. Each outer shell has two electrons outside filled inner shells.

c. Each outer shell lacks an electron of being filled.

d. Each outer shell is filled.




What is characteristic about the outer electron shells of the halogens?



a. Each outer shell has a single electron outside filled inner shells.

b. Each outer shell has two electrons outside filled inner shells.

c. Each outer shell lacks an electron of being filled.

d. Each outer shell is filled.

Explanation / Answer

The rare element selenium has the following arrangement of electrons: a.Group1 b. potassium, sodium, calcium, cesium, magnesium b. Each outer shell has two electrons outside filled inner shells. a. Each outer shell has a single electron outside filled inner shells.

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