Explanation: Greek prefixes are used for binary (two element) molecular compounds. Ionic compounds are named differently. The prefixes are written at the beginning of the name of each element, with the exception of the prefix mono-, which is not used for the first element.

Note: when the addition of the Greek prefix places two vowels adjacent to one another, the “a” (or the “o”) at the end of the Greek prefix is usually dropped; e.g., “nonaoxide” would be written as “nonoxide”, and “monooxide” would be written as “monoxide”….

Because more than one atom of each element is present, prefixes are needed to indicate the number of atoms of each. Consequently, chlorine is named first, but a prefix is not necessary because each molecule has only one atom of chlorine. B Because there are two oxygen atoms, the compound is a dioxide.

When naming binary ionic compounds, name the cation first (specifying the charge, if necessary), then the nonmetal anion (element stem + -ide). Do NOT use prefixes to indicate how many of each element is present; this information is implied in the name of the compound.

Some other words for ionic compound are the following: electrovalent compound. saline compound. saltlike compound.

Ionic bonds are stronger. It takes more energy to pull the two atoms apart to infinity than it does in a covalent bond.

Al3+ is a small, highly charged cation and therefore has a high charge density. Cl− is a relatively large anion, with a low charge density and is easily polarized by the hard cation, giving the bond significant covalent character.

Na2S N a 2 S is an ionic compound. Sodium and sulfur together in a compound represents a ionic bonds, because sodium is a metal and sulfur is a non-metal.

KCl is an example of ionic bonding. Below is a simple diagram of potassium and chlorine atoms.

Ionic bonds result from transfer of electrons, whereas covalent bonds are formed by sharing. Ionic bonds are electrostatic in nature, resulting from that attraction of positive and negative ions that result from the electron transfer process; charge separation between covalently bonded atoms is less extreme.

The most obvious similarity is that the result is the same: Both ionic and covalent bonding lead to the creation of stable molecules. The reactions that create ionic and covalent bonds are exothermic because elements bond together to lower their potential energy.

Ionic transfers electrons and covalent shares electrons. When writing a covalent molecule use. You just studied 10 terms!

There are two basic types of covalent bonds: polar and nonpolar. In a polar covalent bond, the electrons are unequally shared by the atoms and spend more time close to one atom than the other.

An ionic bond is formed by the complete transfer of some electrons from one atom to another. The atom losing one or more electrons becomes a cation—a positively charged ion. The atom gaining one or more electron becomes an anion—a negatively charged ion.

An ionic bond is produced between metallic and non-metallic atoms, where electrons are completely transferred from one atom to another. Usually, the metal gives up its electrons forming a cation to the nonmetal element, which forms an anion. So, the correct answer is B. One atom pulls an electron from another atom.