Oil consists of many B. Covalent bonds between the nonmetals of Carbon, hydrogen and oxygen.
Answer:
I^3, aFeO BfEi^3 O, c, dFe^2 O^3
Explanation:
The two parts of a solution are a Solute and the other one is a Solvent. The Solute is the substance that dissolves, and the Solvent is the majority of the solution.
<span>[Ar]4s²3d¹⁰4p⁴
We see that the last level is this element is 4, so this element should be in
4th period, it has 4 p-electrons, so it should be in 16th group.
4th period, 16th group - it is Se.
You can also go to the next element after Ar, and count beginning of this element 16. (2+10+4 =16 electrons)
From "K" (where K is the first) you count to 16 and it is going to be Se.</span>
