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Bonds Study Guide

QuestionAnswer
Ion - an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
What happens to an ion if it loses or gains and electron loses - becomes a positive ion gains - becomes a negative ion
Ionic bond - an attraction between negative and positively charged ions
Polyatomic ion - A polyatomic ion is an ion made of two or more atoms to create a polyatomic ion
What comes first when writing ionic formulas metals
What happens to the ending of ionic compounds add -ide
How do you create a ionic compound formula given oxidation numbers Calcium chloride - Ca+2 Cl -1 it takes two calciums to match chloride
Identify the properties of ionic compounds - high melting points - when dissolved in water can conduct electricity - hard, brittle, crystals - as a solid in room temperature ions do not conduct electricity well
Covalent bond - Bond made between at least 2 Non-metal atoms, that share electrons
What's the main difference between ionic and covalent bonds An ionic bond essentially donates an electron to the other atom participating in the bond, while electrons in a covalent bond are shared equally between the atoms. The only pure covalent bonds occur between identical atoms
What do covalent bonds usually form as 2 non-metals
What atoms stay attracted to each other covalent
What are the properties of molecular compounds - low melting and boiling points - do not usually conduct electricity when dissolved in water
What's the difference between polar and nonpolar bonds polar - bond where electrons are unequally shared nonpolar - bond where electrons are equally shared
How come some atoms in covalent bonds become slightly negative or slightly positive. when they pull more or less strongly on shared electrons
How are metal atoms bonded in solid metal most metals have 1, 2, or 3 valence electrons
Created by: evamorie