What is the number of valence electrons in an alkaline earth metal?
A) 1
B) 2
C) 7
D) 12
Correct Answer:
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Q43: Which is not a noble gas?
A)Ra
B)Xe
C)Ar
D)Ne
Q44: The "alkaline earth metals" are in group
A)1A
B)2A
C)7A
D)8A
Q45: The electron configuration,[Ar] 4s1,is the ground state
Q46: Which element is a transition element?
A)K
B)Co
C)Ca
D)Kr
Q47: All of the following are used to
Q49: The electron configuration of an atom is
Q50: The maximum number of electrons that can
Q51: What is the number of valence electrons
Q52: Which of the following elements has the
Q53: The "alkali" metals are in group
A)1A
B)2A
C)7A
D)8A
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