Question

question 3 (1 point)
which of the following is correct?

1. s₈ is an atomic element
2. f₂o is an ionic compound
3. o₂ is a molecular element
4. cscl₂ is a molecular compound

Explanation:

• For option 1: An atomic element consists of single atoms. \(S_8\) is made up of 8 - atom molecules, so it is a molecular element, not an atomic element.
• For option 2: Ionic compounds are formed by the transfer of electrons between a metal and a non - metal. \(F_2O\) is formed by the sharing of electrons between non - metals (fluorine and oxygen), so it is a covalent (molecular) compound, not an ionic compound.
• For option 3: \(O_2\) is made up of two - atom molecules. Elements that exist as molecules are called molecular elements.
• For option 4: \(CsCl_2\) is formed by the transfer of electrons from cesium (a metal) to chlorine (a non - metal). Cesium has a + 1 charge (\(Cs^+\)) and chlorine has a - 1 charge (\(Cl^-\)). The correct formula for the ionic compound between cesium and chlorine should be \(CsCl\) (since the charges must balance: \(+1+(-1) = 0\)). But if we consider the general concept, ionic compounds are not molecular compounds. Molecular compounds are formed by non - metals sharing electrons.

Answer:

1. \(O_2\) is a molecular element.