Question

electron revolves around the nucleus in orbits?
a.variable energy 2.fixed energy
3.infinate energy 4.zero energy​

Answer 1

Answer:

(2)

Explanation:

according to Bohr's model , electrons revolve around the nucleus in fixed energy orbits

Answer 2

$\bold{Answer\::}$ option 2) $\bold{fixed\:energy\::}$

$\bold{Additional\: information\::}$

$\bullet$ according to Bohr's models ,in an atom electron revolve around nucleus in a fixed orbit

$\bullet$ energy of each orbit is fixed

$\bullet$ orbit are numbered from 1 to infinite , n=1 being closet to nucleus .

$\bullet$ radius of orbit increase as we move away from nucleus

$\bullet$ radius of orbit is given by r = (0.53)×(n²/Z) angstrom

$\bullet$ energy of orbit increase as we move to higher orbit

$\bullet$ energy of orbit can be derived by using formula given by E = (-13.6)×($\dfrac{Z^{2} }{n^{2} }$) { where Z is atomic number , n is number of orbit }