Which compounds have nonpolar covalent bonds, which have polar covalent bonds, and which have ionic bonds? (Use the electronegativities from the table below, and compare the electronegativities of the atoms involved in each chemical bond.) 1A 2A Li Be 1.0 1.5 Na Mg 0.9 1.2 3B 4B 5B 6B 7B Rb Sr Y Zr Nb Mo 0.8 1.0 1.2 1.4 1.6 1.8 <1.0 1.0-1.4 1. NH3 2. H₂O 1B 2B K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga 0.8 1.0 1.3 1.5 1.6 1.6 1.5 1.8 1.8 1.8 1.9 1.6 1.6 Te Ru Rh Pd Ag Cd In 1.9 2.2 2.2 2.2 1.9 1.7 1.7 Cs Ba La Hf Ta W Re Os Pt Au Hg TI 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.2 2.2 2.2 2.4 1.9 1.8 3. CC14 H 2.1 1.5-1.9 2.0-2.4 8B 2242 Ir 3A B 2.0 2.5-2.9 3.0-4.0 4A 5A 6A 7A C N O F 2.5 3.0 3.5 4.0 Al Si 1.5 P S CI 1.8 2.1 2.5 3.0 Ge 1.8 As Se Br 2.0 2.4 2.8 Sn Sb Te I 1.8 1.9 2.1 2.5 Pb Bi Po At 1.8 1.9 2.0 2.2

Complete the table below

Select the compound that would be expected to have the most negative lattice energy. LiF, NaF, KF, RbF, CsF RbF LiF CsF O KF O NaF

Let's summarize our observations using two terms that may be new to you: ionic bonding and covalent bonding. These substances are formed through ionic bonding: • Cuprous Chloride: CuCl • Potassium lodide: KI • Lithium Bromide: LiBr • Potassium Chloride: KCI These substances are formed through covalent bonding: • Sucrose: C12 H22O11 • lodine: I2 • Octadecanol: C18 H380 • Dimethyl Sulfoxide: C2 H6OS Use your observations in previous sections of this activity to answer these questions. 1. Which of the following are properties of compounds formed by ionic bonding? Select all that apply: lonic compounds have higher melting points than covalent compounds. lonic compounds form when combining a metal atom with a non-metal atom. lonic compounds form when combining a two metal atoms. lonic compounds form when combining two or more non-metal atoms. When you dissolve an ionic compound water, the solution conducts electricity. When you dissolve an ionic compound in water, the solution does not…

Naming Covalent Compounds Although the names end in "-ide", naming for covalent is different than for ionic. We must use prefixes to specify how many of each element are present in the formula. A prefix is used for each element except when the first element has only one. Never start the name with "mono". See examples below. The following prefixes are used in covalent compounds: Formula Name nitrogen dioxide dinitrogen trioxide NO2 mono- means 1 N203 di- means carbon tetrachloride tri- means 3 dichlorine monoxide Cl20 S2C12 tetra- means 4 disulfur dichloride penta- means hexa- 5 means

Find the ionic compound among these. SO3 O C H4 CaH2 О CаН2 O C2H6

Name each ionic compound. In each of these compounds, the metal forms more than one type of ion. Spell out the full name of the compound. HgBr2 Fe2O3 CuI2

What is the formula of silicon tetrafluoride? SiF4 SiF SiF3 Si₂F4 Si4F

From the following ions and their radii (in pm), choose a pair that gives the strongest ionic bonding and a pair that givesthe weakest: Mg²⁺72; K⁺138; Rb⁺152; Ba²⁺135; Cl⁻181;O²⁻140; I⁻220

The element that will most likely form a 2+ ion is A carbon calcium C oxygen C. fluorine OD B.