Answer:this air polluction here.
Explanation:
air and soil polluction
It is an alkaline earth metal.
This change in pressure is caused by changes in air density, and air density is related to temperature.
A ground state electron configuration follows the Aufbau Principle that states that electrons should be filled up in orbitals in increasing energy. In the given sequences, the right configuration is
<span>1s2 2s2 2p6 3s2 3p6 4s2 3d8.
2) the possible confirmation that follows Aufbau's principle is
D. </span><span>-[Kr] 5s24d105p3</span>
Answer:
Five ( 5 ) is the correct answer
