cation form when an atom gains electron
Removing an electron from an atom requires energy
Yes, all ionic compounds consist of ions formed from at least two different elements - one positively charged cation and one negatively charged anion. This is what allows them to have an overall neutral charge and form ionic bonding.
A "salt" is another name for ionic compounds
Out of the compounds listed, only TiO2 (titanium dioxide) is an ionic compound. The others are molecular compounds. TiO2 is composed of a metal (titanium) and a nonmetal (oxygen), resulting in an ionic bond between them.
Ionic bonds are strong enough to cause all ionic compounds to be solids at room temperature. These compounds are held together by the attraction between oppositely charged ions, which creates a lattice structure that gives them their solid state.
Ionic compounds result from the transfer of electrons between atoms leading to the formation of ions, while covalent compounds form from the sharing of electrons. Ionic compounds tend to have higher melting and boiling points compared to covalent compounds due to the stronger electrostatic forces between ions.
- salts are ionic compounds - salts are products of neutralization reactions
The statement that all compounds have a composition of ionic compounds is false. Many compounds can be covalent in nature, where atoms share electrons instead of transferring them. On the other hand, it is true that compounds have a definite composition with fixed ratios of elements and compounds are formed by the bonding of two or more different elements.
True. Most salts are binary ionic compounds composed of a cation from a metallic element and an anion from a nonmetallic element.
Ionic compounds do not require the presence of a metal, for example ammonium chloride is ionic and does not contain a metallic element. What is true is that the majority of ionic compounds involve at least one metal.
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True
I classify that as an overstatement. It is true that a great many ionic compounds are highly soluble in water, but not all of them.
True. Most salts are binary ionic compounds composed of a metal cation and a nonmetal anion.
True. Ionic compounds form between a metal and a nonmetal. The metal loses electrons to become a cation (positively charged ion), while the nonmetal gains these electrons to become an anion (negatively charged ion).
True. A common ion is an ion that is found in more than one ionic compound. These ions are shared among different compounds, which can affect their solubility and reactivity in solutions.
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True. In an aqueous solution of ionic compounds, the positive and negative ions will attract each other due to their opposite charges, forming electrostatic bonds known as dipole attractions.