Which Element Is Most Likely to Have Chemical Properties Similar

question 49

Multiple Choice

Which element is most likely to have chemical properties similar to those of potassium (atomic number 19) ?

• A)Ar (atomic number 18)
• B)Ca (atomic number 20)
• C)Sc (atomic number 21)
• D)Rb (atomic number 37)
• E)Sr (atomic number 38)

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