Ionic bonds generally form between metals and non-metals. So, ionic compounds feature ionic bonds. The greater the electronegativity difference (usually the farther apart they are on the Periodic Table), the more ionic the bond is.
The most ionic compound possible is cesium fluoride (CsF) because those two elements have the greatest possible electronegativity difference.
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A compound formed between a metal and a nonmetal is most likely to contain an ionic bond. This is because metals tend to lose electrons to form positive ions, while nonmetals tend to gain electrons to form negative ions, leading to the attraction between the oppositely charged ions in the compound.
No, KL is not an ionic compound. It is most likely potassium iodide (KI), which is a binary ionic compound consisting of potassium and iodine.
CH4 (methane) is not likely to have ionic bonds. This compound is composed of covalent bonds between carbon and hydrogen atoms. The other compounds listed contain ions and are more likely to have ionic bonds.
PbO2 is an ionic compound composed of lead (Pb) and oxide ions (O2-) bound together by ionic bonds.
NH2CO3 is not an ionic compound, it is a molecular compound. It does not contain ions; instead, it consists of covalent bonds between the atoms.
No, HgCO3 is not a typical ionic compound. It is a covalent compound because it contains a metal (Hg) and a polyatomic ion (CO3) bound together by covalent bonds.