Which of the following represents a pair of isotopes?
A) .146C,147N
B) .11H,21H
C) .3216S,3216S-2
D) O2,O3
Correct Answer:
Verified
Q22: An imaginary element Xz consists of two
Q41: Magnesium is an example of a(an)
A)alkali metal.
B)alkaline
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Q44: Which group contains only metalloids?
A)Ni,Pd,Pt
B)Si,Ge,As
C)Ce,Pr,Nd
D)Kr,Xe,Rn
E)Po,Fr,Ac
Q53: Which element is most likely to have
Q57: Which group of elements contains only non-metals?
A)Mg,Ca,Sr
B)V,Cr,Mn
C)Cl,Ar,K
D)P,As,Se
E)C,S,I
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Q67: The element with the electron configuration
1s2 2s2
Q80: Which of the following subshells consists of
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