Energy is ________ when an electron jumps from higher energy level to lower energy level.
absorbed
released
neither absorbed nor released
If an electron drops down from n=2 to n=1 energy is emitted, and if the electron moves up from n=1 to n=2 energy is absorbed.
When a mixture of iron powder and sulphur powder is heated strongly to form iron sulphide, then heat energy is :
(a) released (b) first absorbed and then released
(c) absorbed (d) neither absorbed nor released