Question
Download Solution PDFWhat is the maximum number of electrons that can occupy the first shell of an atom?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
Electron Configuration and the Bohr Model
- In atomic theory and quantum mechanics, an electron shell, or a principal energy level, may be thought of as an orbit followed by electrons around an atom's nucleus.
- The Bohr model of the atom defines these shells and the maximum number of electrons that each shell can hold.
- The first shell, also known as the K-shell, can hold a maximum of 2 electrons.
EXPLANATION:
- According to the Bohr model, each shell is assigned a principal quantum number (n), with the first shell being n=1.
- The maximum number of electrons in a shell is given by the formula 2n2.
- For the first shell (n=1):
- Maximum number of electrons = 2(1)2 = 2
- Therefore, the first shell can hold a maximum of 2 electrons.
Therefore, the maximum number of electrons that can occupy the first shell of an atom is 2.
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