QQuestionChemistry
QuestionChemistry
How many valence electrons does lithium, with atomic number 3, have in its outer shell?
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Answer
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Step 1: Recall the definition of valence electrons
Valence electrons are the outermost electrons in an atom and are involved in the formation of chemical bonds with other atoms.
Step 2: Understand how to find valence electrons using an atom's atomic number
The number of valence electrons in an atom can be found by looking at its position in the periodic table or by using its atomic number, which is the number of protons in the atom's nucleus. The atomic number for lithium is 3.
Final Answer
Lithium has 1 valence electron in its outermost shell.
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