Question

26
which one of the compounds below is most likely to be ionic? * (0.5 points)
gaas
sccl3
no2
cci4
clo2

Explanation:

Ionic compounds are formed between metals and non - metals. Sc (scandium) is a metal and Cl (chlorine) is a non - metal. In \(ScCl_3\), scandium donates electrons to chlorine atoms to form ionic bonds.
GaAs: Ga (gallium) is a metal and As (arsenic) is a non - metal, but it has more covalent character due to the similarity in electronegativity.
\(NO_2\): Both N (nitrogen) and O (oxygen) are non - metals, forms covalent bonds.
\(CCl_4\): C (carbon) and Cl (chlorine) are non - metals, forms covalent bonds.
\(ClO_2\): Cl (chlorine) and O (oxygen) are non - metals, forms covalent bonds.

Answer:

ScCl3