Presentation on theme: "Two-Minute Drill Get out your notes from the guided reading assignment Homework Complete the Bonds Worksheet Learner Objective Learner will be able to."— Presentation transcript:
Two-Minute Drill Get out your notes from the guided reading assignment Homework Complete the Bonds Worksheet Learner Objective Learner will be able to explain the difference between the three types of chemical bonds, what subatomic particle forms a chemical bond between two atoms, and how to calculate the % Ionic Character to determine the type of chemical bond that forms between two atoms.
Using your notes from the reading assignment determine which chemical bond describes the definition below the best. (Covalent, Ionic, and Metallic) 1.A bond between two metal atoms. 2.A bond where the electrons are shared between the two atoms. 3.A bond where an electrical attraction occurs between two atoms.
An Ionic bond is formed when one atom transfers its outermost electrons to another atom. The Ionic Bond is a force of attraction that holds two atoms together as a result of the rearrangement of electrons between them.
How to determine if a bond is ionic? To determine what type of bond is formed between two atoms we will need to use the electronegativity constants on the backside of your Periodic Table of Elements.
Calculate the Percent Ionic Character for NaCl. Electronegativity's for: Na= 0.93Cl= 3.16
Difference between Cl and Na 3.16 – 0.93 = 2.23 or 2.2 2.2 = 70% An Ionic Bond formed if the % Ionic Character is greater than 50%. Atom with the highest electronegativity will gain the electron and become an anion. So “Cl” will be the anion and “Na” will be the cation.