What is the atomic number of selenium?
A) 34
B) 16
C) 14
D) 38
Correct Answer:
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Q71: Which element is most similar to Calcium?
A)Silicon
B)Potassium
C)Scandium
D)Strontium
Q72: What is the symbol of the element
Q73: Which is a transition element?
A)Magnesium
B)Potassium
C)Manganese
D)Silicon
Q74: Which chemical symbol is properly written?
A)CA
B)Cu
C)CO
D)CL
Q75: Which element is most similar to bromine?
A)Chlorine
B)Radium
C)Cesium
D)Zinc
Q77: Which is a halogen?
A)Chlorine
B)Helium
C)Potassium
D)Calcium
Q78: Which cannot be broken down chemically or
Q79: How many hydrogen atoms are in the
Q80: What is the atomic number of potassium?
A)15
B)19
C)46
D)50
Q81: More substances exist as compounds than as
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