Answer:
[tex]\boxed {\boxed {\sf A. \ SiCl_4}}[/tex]
Explanation:
We are given the compound name: silicon tetrachloride.
Silicon is a metalloid and chlorine is a nonmetal, therefore we must use the rules of molecular compounds. Molecular compounds use prefixes to name the compounds. Break up the compound into 2 parts.
1. Silicon
The first element: silicon, has no prefix. Therefore, a prefix of mono (1) is implied.
2. Tetrachloride
The -ide suffix is added to the second element, so this is really chlorine. The prefix of tetra means 4.
So there is 1 silicon (Si) atom and 4 chlorine (Cl) atoms. The formula must be SiCl₄
