In which group do all atoms have two valence electrons in the ground state?
A) alkali metals
B) alkaline earth metals
C) halogens
D) noble gases
Correct Answer:
Verified
Q123: Elements in the same group generally have
A)different
Q124: The noble gases are a unique group
Q125: Which element is an inner transition metal?
A)Ba
B)K
C)La
D)Zr
Q126: In which group do all atoms have
Q127: In which group do all atoms have
Q129: Which of the halogens is a liquid
Q130: Iodine has _ valence electrons.
A)three
B)five
C)seven
D)eight
Q131: Carbon has _ valence electrons.
A)one
B)two
C)three
D)four
Q132: The electrons in the outermost energy level
Q133: Elements in the same period generally have
A)different
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