Question

this table classifies several compounds as either lonic or covalent. according to the table, which of the following is true for lonic compounds but not for covalent compounds? lonic compounds consist of- three or more unique elements at least one metal and at least one nonmetal, elements that are heavier than carbon (c), atoms that share electrons. question 2

Explanation:

• Ionic compounds are formed between metals and non - metals. For example, in NaCl (Na is a metal, Cl is a non - metal), \(Al(OH)_3\) (Al is a metal, O and H are non - metals), \(FeCl_3\) (Fe is a metal, Cl is a non - metal).
• Covalent compounds are formed between non - metals. In \(SF_2\), both S and F are non - metals.
• Option 1: Some ionic compounds like NaCl have only two elements.
• Option 3: There is no such rule that ionic compounds must have elements heavier than carbon.
• Option 4: Atoms sharing electrons is a property of covalent compounds.

Answer:

at least one metal and at least one nonmetal.