GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Electrons farthest away from the nucleus
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Electrons closest to the nucleus
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Electrons that just come and go-they don’t stay with the atom
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None of the above
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Detailed explanation-1: -Electrons that are closer to the nucleus are in filled orbitals and are called core electrons . Valence electrons are the farthest from the positive charge (the protons) and thus tend to be easier to remove than core electrons; this means that it takes them less energy to move far away from the atom.
Detailed explanation-2: -Valence electrons are the electrons in the outer energy level of an atom that can participate in interactions with other atoms. Valence electrons are generally the electrons that are farthest from the nucleus.
Detailed explanation-3: -The electrons in the energy level farthest from the nucleus are called valence electrons.
Detailed explanation-4: -The “new” valence shell is held closer to the nucleus, resulting in a smaller radius for the cation. An anion has a larger radius than the neutral atom because it gains valence electrons.
Detailed explanation-5: -Atomic radius is the distance between the centre of nucleus to the valence shell of an atom. It is usually measured in Angstroms (Å) and 1Å=10−10m. Q. In an atom, electrons are arranged around the nucleus in various shells.