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![]() A type II ionic compound contains a metal that forms more than one type of ion, i.e., the same element in different oxidation states. For example, calcium carbonate consists of the monatomic cation Ca 2+ and the polyatomic anion CO 2−ģ both pentazenium ( N + 5) and azide ( N − 3) are polyatomic as well.Ī type I binary ionic compound contains a metal that forms only one type of ion. If, instead of being monatomic, an ion contains more than one atom, even if these are of the same element, it is called a polyatomic ion. For example, fluorine will want 1 more electron to fill it's electron shell because it's one away from the closest noble gas. Classify each compound as ionic or covalent.A monatomic ion (also called simple ion ) is an ion consisting of exactly one atom. The most stable monatomic ion will occur when the atom's electron shells are all completely full. Classify each compound as ionic or covalent.ģ. ![]() What are the differences and similarities between a polyatomic ion and a molecule?Ģ. For each representation of a monatomic ion, identify the parent atom, write the formula of the ion using an appropriate superscript, and indicate the period and group of the periodic table in which the element is found.ġ. Since fluorine and potassium form ions to gain the. For each representation of a monatomic ion, identify the parent atom, write the formula of the ion using an appropriate superscript, and indicate the period and group of the periodic table in which the element is found.ĩ. Answer link e Ionic radius, rion, is the radius of a monatomic ion in an ionic crystal structure. Because carbonate ions together with calcium ions (als CaCO3) form the basic. Predict the charge on the most common monatomic ion formed by each element.Ĩ. Reaction with cesium carbonate, the most basic of the alkali carbonates of. Predict the charge on the most common monatomic ion formed by each element.ħ. Predict how many electrons are in each ion.Ħ. Predict how many electrons are in each ion.ĥ. Solution for Write the electron configuration for the monatomic ions formed from the following elements (which form the greatest concentration of monatomic. What is the total number of electrons present in each ion?Ĥ. Explain why beryllium forms an ion with a charge of +2. What is the total number of electrons present in each ion?ģ. What is the most stable potassium ion What is the most stable monatomic ion formed from caesium Explain why noble gases are usually referred to as inert gases. Based on this information, draw the structural formula of dichloromethane (CH 2Cl 2).Ģ. The structural formula for chloroform (CHCl 3) was shown in Example 2. Covalent compounds generally melt at lower temperatures than ionic compounds because the intermolecular interactions that hold the molecules together in a molecular solid are weaker than the electrostatic attractions that hold oppositely charged ions together in an ionic solid.ġ. Why do covalent compounds generally tend to have lower melting points than ionic compounds?Īnswer 7. physical states at room temperature and pressure.ħ. the forces that hold the atoms together.Ĭ. The octet rule correctly predicts the configurations of the monatomic ions formed by all nonmetals and by the representative metals of Groups I and II. Discuss the differences between covalent and ionic compounds with regard toĪ. The majority of elements that exist as diatomic molecules are found in one group of the periodic table. What is the advantage of writing a structural formula as a condensed formula?ĥ. What is the difference between an organic compound and an inorganic compound?Ĥ. Which contains fewer electrons than the neutral atom-the corresponding cation or the anion?ģ. Which class of compounds contains pairs of electrons shared between bonded atoms?Ģ. Describe the differences in the nature of the attractions in ionic and covalent compounds. Ionic and covalent compounds are held together by electrostatic attractions between oppositely charged particles.
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