Which of the Following Atomic Numbers (Which Are the Same

question 15

Multiple Choice

Which of the following atomic numbers (which are the same as the number of electrons in a neutral atom) correspond to a Group 2 metal,i.e.their ground-state electronic configuration ends in "..s^2"?

• A)4,14,20
• B)4,22,40
• C)6,12,22
• D)4,12,38
• E)4,14,38

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