Verified Answer :

your answer is c. two atoms of oxygen.

One atom of silicon is perfectly combined with the \(\boxed{{\text{two atoms of oxygen}}}\)  and forms silicon dioxide.


Further explanation:


Law of multiple proportions:

This law states that the molecule is a particle that is made up of two or more element. The elements are always combined in a ratio of fixed whole number.


Silicon has electron configuration \(\left[{{\text{Ne}}}\right]3{s^2}3{p^2}\)  so it can form 4 covalent bonds with other atoms.


One atom of silicon is combined with hydrogen in 1:4 ratio and form \({\text{Si}}{{\text{H}}_4}\) . This compound is known as silane. Thus silicon is not able to combine with three hydrogen atoms.


One atom of silicon is combined with calcium as calcium silicate \(\left({{\text{C}}{{\text{a}}_{\text{2}}}{\text{Si}}{{\text{O}}_{\text{4}}}}\right)\)   and Calcium silicon \(\left({{\text{Ca}}{{\text{H}}_{\text{4}}}{\text{Si}}}\right)\) . Therefore, silicon would not be able to combine with 4 calcium simultaneously.


One atom of silicon is combined with oxygen in 1:2 ratio and form \({\text{Si}}{{\text{O}}_2}\) . This compound is known as silicon dioxide. Thus silicon can combine with two oxygen atoms.


One atom of silicon is combined with chlorine in 1:4 ratio and form \({\text{SiC}}{{\text{l}}_4}\) . This compound is known as silicon tetrachloride. Thus silicon is not able to combine with one chlorine.


Learn more:

1. Calculate the moles of chlorine in 8 moles of carbon tetrachloride: https://brainly.com/question/3064603

2. Which law states the direct relationship between volume and absolute temperature at constant pressure? https://brainly.com/question/1403211


Answer details:

Grade: Senior School

Subject: Chemistry

Chapter: Mole concept


Keywords: One atom of silicon, properly combined, three atom of calcium, one atom of chlorine and two atom of oxygen.