Which of the following is a noble gas?
A) He
B) Ar
C) Xe
D) all of the above
E) none of the above
Correct Answer:
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Q39: Previous to the X-ray emission evidence of
Q40: Following the X-ray emission studies of Harry
Q41: Which of the following is a radioactive
Q42: Which of the following is an alkaline
Q43: Which of the following is an alkaline
Q45: Which of the following is a noble
Q46: Which of the following is a radioactive
Q47: Which of the following elements are fifth
Q48: Which of the following is an alkali
Q49: Which of the following is a halogen?
A)Cl
B)F
C)I
D)all
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