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Which two elements on the periodic table are in the same period?

Responses
A Sn and RbSn and Rb
B F and ClF and Cl
C K and BaK and Ba
D Se and Te

1 answer

To determine which two elements are in the same period, we can refer to their positions on the periodic table:

  • Sn (Tin) is in Period 5.

  • Rb (Rubidium) is in Period 5.

  • F (Fluorine) is in Period 2.

  • Cl (Chlorine) is in Period 3.

  • K (Potassium) is in Period 4.

  • Ba (Barium) is in Period 6.

  • Se (Selenium) is in Period 4.

  • Te (Tellurium) is in Period 5.

Based on this information, the correct answer is:

A. Sn and Rb - Both are in Period 5.