Rubidium (Z = 37) and Potassium (Z = 19) Are

question 54

Multiple Choice

Rubidium (Z = 37) and potassium (Z = 19) are similar to sodium in that they have ____ electron(s) in the outermost shell.

• A) five p
• B) three p
• C) two s
• D) one d
• E) one s

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