Answer:-
Carbon
[He] 2s2 2p2
1s2 2s2 2p2.
potassium
[Ar] 4s1.
1s2 2s2 2p6 3s2 3p6 4s1
Explanation:-
For writing the short form of the electronic configuration we look for the nearest noble gas with atomic number less than the element in question. We subtract the atomic number of that noble gas from the atomic number of the element in question.
The extra electrons we then assign normally starting with using the row after the noble gas ends. We write the name of that noble gas in [brackets] and then write the electronic configuration.
For carbon with Z = 6 the nearest noble gas is Helium. It has the atomic number 2. Subtracting 6 – 2 we get 4 electrons. Helium lies in 1st row. Starting with 2, we get 2s2 2p2.
So the short term electronic configuration is [He] 2s2 2p2
Similarly, for potassium with Z = 19 the nearest noble gas is Argon. It has the atomic number 18. Subtracting 19-18 we get 1 electron. Argon lies in 3rd row. Starting with 4, we get 4s1.
So the short electronic configuration is
[Ar] 4s1.
For long term electronic configuration we must write the electronic configuration of the noble gas as well.
So for Carbon it is 1s2 2s2 2p2.
For potassium it is 1s2 2s2 2p6 3s2 3p6 4s1
Solution. because the substances can't go back to their original form. like kool aid, when its mixed you cant separate the powder and the water again.
If a compound is made from a metal and a non-metal, its bonding will be ionic.
If a compound is made from two non-metals, its bonding will be covalent.
It is at the right of it..
<h2>Hello!</h2>
The answer is: cold, rising air.
<h2>
Why?</h2>
The high-pressure areas are at the poles due to the cold rising air. It's known that the cold air is more sense that the warm air because the warm gases molecules are more separated during the gas, is warm, which make it less dense than cold air.
Due to the form of our planet and the location of the poles, the cold air rises while the warm air down around the tropics and rise again to the poles (getting cold while it's getting closer to the poles).
High-pressure at poles is also caused because the solar radiation is higher at the equator than at the poles.
Have a nice day!
