Q. Which of the responses contains all the statements that are consistent with the Bohr theory of the atom (and no others)?
(1) An electron can remain in a particular orbit as long as it continually absorbs radiation of a definite frequency.
(2) The lowest energy orbits are those closest to the nucleus.
(3) An electron can jump from the K shell (n = 1 major energy level) to the M shell (n = 3 major energy level) by emitting radiation of a definite frequency.
A. 1,2,3
B. 2 only
C. 3 only
D. 1,2
Answer: 2 only