Which element belongs to the alkali metals?
A) rubidium
B) germanium
C) barium
D) iodine
E) argon
Correct Answer:
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Q43: Which of the following is a metalloid?
A)oxygen
B)hydrogen
C)silicon
D)carbon
E)copper
Q44: The mass spectrum of an element with
Q45: Neon has three naturally occuring isotopes.The abundance
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Q49: The elements in groups 1A-8A or 1-2
Q50: The mass spectrum of an element with
Q51: The average atomic mass of Eu is
Q52: Which formula is best described as a
Q53: A periodic law based on atomic masses
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