Explanation:
this is the answer of your question .
hope it helped you
An electron in the 3s orbital. The order of electron orbital energy levels starting from lowest to highest is as follows: 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p.
Answer:
Acceleration is defined as the rate of change for velocity.
It is the boilimg point now aa
There are 115 known elements as of today (Feb. 13, 2016)
so, 'C' is the correct answer