Neil Bohr put forward his atomic theory in.…
a) 1911
b) 1917
c) 1932
d) 1913
Bohr considered ………………….as model.
a)cork
b) sun
c) moon
d) hydrogen
atom
Electrons are revolving around the nucleus in on of the fixed
circular paths called ……….
a) shells
b) orbits
c) a & b both
d) none of these
Each orbit has ……… energy.
a) fixed
b) variable
c) no
d) none of these
Orbits are also called ………
a) energy levels
b) shells
c) a & b both
d) curvatures
The energy of the electron in an orbit is proportional to ………. from the nucleus.
a) distance
b) closeness
c) a & b both
d) none of these
