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Question
How many electrons are there in an atom of lithium?
How many electrons are there in an atom of lithium?
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Solution
The correct option is C 3
Atomic number of lithium is 3. This tells us that lithium is made up of 3 protons.
Number of protons = Number of electrons
Therefore, there are three electrons present in a lithium atom.
Electronic configuration of lithium is 2, 1.
Atomic number of lithium is 3. This tells us that lithium is made up of 3 protons.
Number of protons = Number of electrons
Therefore, there are three electrons present in a lithium atom.
Electronic configuration of lithium is 2, 1.
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