Compound containing both ionic and covalent bonds

An ionic bond is a chemical bond between two atoms in which one atom seems to donate its electron to another atom. Covalent bondson the other hand, appear to involve two atoms sharing electrons reach a more stable electron configuration. These compounds contain polyatomic ions. Many of these compounds contain a metal, a nonmetal, and also hydrogen.

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Compound containing both ionic and covalent bonds

Some chemical compounds contain both ionic and covalent bonds. These are ionic compounds that contain polyatomic ions. Often, a compound with both types of bonds contains a metal bonded to an anion of covalently bonded nonmetals. Less often, the cation is polyatomic. Sometimes nonmetals bond to form a cation with enough electronegativity difference from the anion to form an ionic bond! Here are examples of compounds with both ionic and covalent bonds. Remember, an ionic bond occurs when one atom essentially donates a valence electron to another atom. A covalent bond involves atoms sharing electrons. In pure covalent bonds, this sharing is equal. In polar covalent bonds, the electron spends more time with one atom than the other. For example, in potassium cyanide KCN , the carbon C and nitrogen N are both nonmetals, so they share a covalent bond. The potassium atom K is a metal, so it bonds to the nonmetallic anion via an ionic bond.

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In chemical reactions, the nucleus of each atom and thus the identity of the element remains unchanged. Electrons, however, can be added to atoms by transfer from other atoms, lost by transfer to other atoms, or shared with other atoms. The transfer and sharing of electrons among atoms govern the chemistry of the elements. You can use the periodic table to predict whether an atom will form an anion or a cation, and you can often predict the charge of the resulting ion. Atoms of many main-group metals lose enough electrons to leave them with the same number of electrons as an atom of the preceding noble gas. For example, a neutral calcium atom, with 20 protons and 20 electrons, readily loses two electrons. When atoms of nonmetal elements form ions, they generally gain enough electrons to give them the same number of electrons as an atom of the next noble gas in the periodic table. For example, the neutral bromine atom, with 35 protons and 35 electrons, can gain one electron to provide it with 36 electrons.

Compound containing both ionic and covalent bonds

In ionic compounds, electrons are transferred between atoms of different elements to form ions. But this is not the only way that compounds can be formed. Atoms can also make chemical bonds by sharing electrons equally between each other. Such bonds are called covalent bonds. Covalent bonds are formed between two atoms when both have similar tendencies to attract electrons to themselves i. For example, two hydrogen atoms bond covalently to form an H 2 molecule; each hydrogen atom in the H 2 molecule has two electrons stabilizing it, giving each atom the same number of valence electrons as the noble gas He.

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An ionic bond is a chemical bond between two atoms in which one atom seems to donate its electron to another atom. Covalent bonds , on the other hand, appear to involve two atoms sharing electrons reach a more stable electron configuration.

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