Which symbol(s) represent(s) elements in the noble gas family? 
A) X and Z
B) P and L
C) Q
D) Y
Correct Answer:
Verified
Q4: On a Periodic Table,the columns of elements
Q11: Which substance is an element?
A)NO2
B)NaCl
C)N2
D)CH4
Q17: Which differentiates a compound from a mixture
Q20: The most numerous of the elements are
Q33: Which squares contain mixtures? Q33: Which is the balanced chemical equation showing Q36: Although only about 100 elements exist,over _ Q38: Which symbols represent only elements that are Q40: Which square(s)contain(s)only an element? Q41: During a chemical reaction,
A)atoms are rearranged.
B)some atoms
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