Which of the following has negative charge and is present in atom as pairs with opposite spin?
A
Proton
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B
Neutron
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C
Electron
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D
Isotope
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E
Ion
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Solution
The correct option is C Electron Option C is the correct answer.
An electron is a negatively charged particle. In an orbital, if two electrons are present together, they should and must have opposite spins. Because, no two electrons can be identically same.