Physics · Atomic Spectra
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The radius of third bohr orbit is:
- A
0.529 * 3^2 Å
- B
0.529 * 2^2 Å
- C
0.529 * 4^2 Å
- D
0.529 Å
This is the correct answer. According to Bohr's model, the radius of an electron's orbit in a hydrogen atom is given by:
rn = n^2 * a0
where:
rn is the radius of the nth orbit
n is the principal quantum number (1, 2, 3, ...)
a0 is the Bohr radius (5.29 * 10^-11 m or 0.529 Å)
For the third Bohr orbit (n = 3):
r3 = 3^2 * 0.529 Å = 9 * 0.529 Å = 4.761 Å
Therefore, the radius of the third Bohr orbit is 0.529 * 3^2 Å.
This is the correct answer. According to Bohr's model, the radius of an electron's orbit in a hydrogen atom is given by:
rn = n^2 * a0
where:
rn is the radius of the nth orbit
n is the principal quantum number (1, 2, 3, ...)
a0 is the Bohr radius (5.29 * 10^-11 m or 0.529 Å)
For the third Bohr orbit (n = 3):
r3 = 3^2 * 0.529 Å = 9 * 0.529 Å = 4.761 Å
Therefore, the radius of the third Bohr orbit is 0.529 * 3^2 Å.
This is incorrect. This expression would give the radius of the second Bohr orbit.
This is incorrect. This expression would give the radius of the fourth Bohr orbit.
This is incorrect. This is the value of the Bohr radius, which represents the radius of the first Bohr orbit.
Tagged under Physics · Atomic Spectra · 2023