What group of elements does the shaded area in the following periodic table indicate? 
A) alkali metals
B) alkaline earth metals
C) inner transition metals
D) transition metals
Correct Answer:
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Q73: Which of the following statements concerning ionic
Q74: The chemical formula for potassium peroxide is
A)KOH.
B)KO2.
C)K2O.
D)K2O2.
Q75: What group of elements does the shaded
Q76: The gas Freon-11,CCl3F,contains
A)C4+,Cl-,and F- ions.
B)C4+,Cl3-,and F- ions.
C)C4+
Q77: KH2PO4 is
A)hydropotassium phosphate.
B)potassium dihydrogen phosphate.
C)potassium diphosphate.
D)potassium hydrogen(II)phosphate.
Q79: The ion NO2- is named
A)nitrate ion.
B)nitrite ion.
C)nitrogen
Q80: What group of elements does the shaded
Q81: Which element indicated by letter in the
Q82: Which element indicated by letter in the
Q83: Which element indicated by letter in the
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