velocity of electron in third shell of lithium 2 + is
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Answer:
v = 1/137 c
please please read the explanation below :-
Explanation:
# Given -
For 3rd shell of Li, Z = 3 & n = 3
# Solution -
Speed of electron in nth orbit of atom is given by -
v = Ze² / 2εnh
Substitute values,
v = 3 × (1.6×10^-19)^2 / (2 × 8.85×10^-12 × 3 × 6.6×10^-34)
v = 2.19×10^6 m/s
Speed of this electron with speed of light will be -
v/c = 2.19×10^6 / 3×10^8
v/c = 0.0073
v = 0.0073 c
v = 1/137 c
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