What group of elements does the shaded area in the following periodic table indicate?
A) alkali metals
B) alkaline earth metals
C) halogens
D) noble gases
Correct Answer:
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A)C4+,Cl-,and F- ions.
B)C4+,Cl3-,and F- ions.
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A)hydropotassium phosphate.
B)potassium dihydrogen phosphate.
C)potassium diphosphate.
D)potassium hydrogen(II)phosphate.
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A)nitrate ion.
B)nitrite ion.
C)nitrogen
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