Answer
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Step 1:I'll solve this step-by-step following the precise LaTeX and formatting guidelines:
Step 2:: Identify the element's position in the periodic table
- Rubidium (Rb) is located in Group 1 (alkali metals) on the periodic table - Its atomic number is 37
Step 3:: Determine electron configuration
- The electron configuration of Rb is $$1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 4s^{2} 3d^{10} 4p^{6} 5s^{1}
Step 4:: Count valence electrons
- This single valence electron is in the $$5s^{1}$$ orbital
- For Group 1 elements, the number of valence electrons is equal to the group number
Final Answer
Rubidium (Rb) has 1 valence electron.
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