Of the following elements, which is most likely to form a negative ion with charge 1–?...
Of the following elements, which is most likely to form a negative ion with charge 1–? Si ,Cl, Ba ,Ca or P
Which has these types of electromagnetic radiation arranged in order of decreasing energy?
-Radiowaves, Visible, Ultraviolet
-Visible, Ultraviolet, X-ray
-X-ray, Visible, Ultraviolet
-Ultraviolet, Visible, Infrared
-None of these choices are correct.
Homework Answers
Chlorine forms a negative ion with charge -1. Chlorine gains electrons to fill the valence energy level. Silicon has +4 or -4
Calcium and Barium has +2 charge (Same group in periodic tabel)
Phosphorus has a charge of -3
Order of decreasing energy of electro magnetic radiation
:Ultraviolet, visible and infrared
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