QQuestionChemistry
QuestionChemistry
"Looking at the periodic table, determine the number of valence electrons present in potassium (K).
3 valence electrons
4 valence electrons
2 valence electrons
1 valence electron"
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Answer
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Step 1:: Refer to the periodic table and locate potassium (K), which is in group 1 (excluding the noble gases group).
Step 2:: The number of valence electrons in an element is equal to the group number in which the element is located in the periodic table.
This is a general rule for main group elements.
Step 3:: Since potassium (K) is in group 1, it has 1 valence electron.
Final Answer
Potassium (K) has 1 valence electron.
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