Answer:
3 (s,p,d)
Explanation:
Principle energy levels number of sublevels number of electrons
1 1s 2n² = 2(1)²= 2
2 2s 2n² = 2(2)²= 8
2p
3 3s 2n² = 2(3)²= 18
3p
3d
when an atom has 3 energy level it has 1 sublevel (s) in 1st energy level 2 sublevels (s ans p) in second energy and three sublevels in third energy level (s,p,d). This atom with n=3 can accommodate 18 electrons in these sublevels.
One definition of an acid is a molecule that can donate a H+ ion. So for example if you have an acid such as hydrochloric acid (HCl) in water, HCl will donate it's H+ to the H2O molecule, forming Cl- and H3O+.
In contrast, a base is a molecule that accepts H+ ions. This means a base such as NH3 reacts with H2O to form OH- and NH4.
So when pH is measured, it is the ratio of H3O+ ions to OH- ions. If there are more H3O+ ions, you then know that there are more acidic molecules in the solution, since they must be giving away their H+ ions.
So a solution with an acid in it will have more H3O+ ions (which can be described as H+ ions) in it. However, an acid by itself will have nothing to donate H+ ions to.
hope this helps also please make me the brainliest
D.) "Vaporization" <span>is not a form of heat transfer.
It is just conversion of the state of matter from Liquid to Vapor
Hope this helps!</span>
Climate change is consuming because there is lots of clear cutting and co2 that creates gases that are trapped into the atmosphere and there are lots of green house gases which produce more heat than the earth's atmosphere can take
An atom is each sphere which are all connected