We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byConrad Anthony Woods
Modified about 1 year ago
1 of 11© Boardworks Ltd 2012 Ions
2 of 11© Boardworks Ltd 2012
3 of 11© Boardworks Ltd 2012 Compounds are formed when different elements chemically react and form bonds with each other, e.g. water (H 2 O). Elements are made up of just one type of atom, sometimes joined to other atoms of the same element by chemical bonds. This forms molecules such as chlorine (Cl 2 ). What are bonds? Different types of bonds are formed depending on the types of atoms involved: ionic bonding occurs between metal and non-metal atoms. covalent bonding occurs between non-metals atoms only. All bonding involves changes to the number of electrons in the outer shells of atoms.
4 of 11© Boardworks Ltd 2012 Why do atoms form bonds?
5 of 11© Boardworks Ltd 2012 An ion is an atom or group of atoms that has an electrical charge, either positive or negative. Atoms have an equal number of protons and electrons and so do not have an overall charge. Atoms with incomplete outer electron shells are unstable. By either gaining or losing electrons, atoms can obtain full outer electron shells and become stable, just like the noble gases. When this happens, atoms have an unequal number of protons and electrons and so have an overall charge. This is how atoms become ions. How do atoms form ions?
6 of 11© Boardworks Ltd 2012 Positive and negative ions
7 of 11© Boardworks Ltd 2012 Building an ion
8 of 11© Boardworks Ltd 2012 Calculating ion charges
9 of 11© Boardworks Ltd 2012 What is a compound ion? Ions can be made up of a single atom or a group of atoms. An ion made up of a group of atoms is called a compound ion. hydroxide sulfate nitrate carbonate ammonium IonFormulaChargeAtoms present NH 4 + CO 3 2- NO 3 - SO 4 2- OH - OOOOOOOOOOO H HHHH C N N S What atoms are present in the following compound ions?
10 of 11© Boardworks Ltd 2012 Comparing positive and negative ions
11 of 11© Boardworks Ltd 2012 Naming ions and compound ions There are two common types of ions: –ide ions and –ate ions. What is the difference? Generally, –ide ions are negatively-charged ions of an element, e.g. sulfide (S 2- ), fluoride (F - ), oxide (O 2- ). The exception to this rule is the hydroxide ion, which contains both hydrogen and oxygen (OH - ). –ate ions are negatively-charged compound ions that include oxygen, e.g. sulfate (SO 4 2- ), nitrate (NO 3 - ), carbonate (CO 3 2- ).
CHEMICAL BONDING. INTRODUCTION Atoms do not tend to exist on their own Atoms do not tend to exist on their own Most often, they are found joined together,
Chemistry Atoms – The basic building blocks of all the substances in the universe. All things are made up of atoms.
Chemical Bonding. Why the noble gaes are so noble… The elements in group 18 are known as the noble gases. They are completely unreactive The other elements.
Unit 4 Notes Chemistry Mr. Nelson Why do atoms bond? Why DONT some atoms bond? The noble gases – why? They have a full s and p subshell of electrons.
Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.
Unit 5 Notes Chemistry Mr. Nelson Chemical Bonds Today we will learn about ionic bonds –Ionic Electrostatic attraction between ions.
Atomic Structure and Chemical Bonding Katina Peck 8 th Grade Science.
An Eye on the Ion. An atom that has either gained or lost one or more electrons resulting in a net electrical charge (positive or negative).
Ions and Ionic Bonds. Review Octet Rule Atoms typically gain or lose valence e - so they will have the same e - configuration as a noble gas. Most noble.
Bonds and Compounds How to write, name and/or draw various Chemical Compounds.
CH. 2 Chemistry of life Section 1 Nature of matter Atoms Atom- is the smallest unit of matter that cannot be broken down by chemical means. Atoms consist.
Chapter 1 Bingo Review. Equals the number of protons OR electrons in an atom Made up of protons, neutrons, & electrons Bond that occurs between two nonmetals.
Bond Day 2: #4. Chemical Bond Day 2: #4 Before there were bonds, there had to be elements! Lets review elements & the Periodic Table THIS TABLE: No,
Chemistry of Life. Element A substance that cannot be broken down into simpler substances. Each element is identified by a one or two letter symbol. Ca.
Chemical Bonds Atom – the smallest unit of matter indivisible Helium atom.
Ionic Bonds For review pages Sections 8:1- 8:3 Forming Chemical Bonds The Formation and Nature of Ionic Bonds Names and Formulas for Ionic Compounds.
Unit 4 Notes Chemistry Mr. Nelson Chemical Bonds Three basic types of bonds –Ionic Electrostatic attraction between ions –Covalent Sharing of electrons.
Bond Types & Covalent Compounds Mr. Bimber Freedom High School.
Chapter 2, Section 2. Interactions of Atoms Compounds – Atoms of more than one type of element that have been chemically bonded together – Often have.
Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Chapter 9 Chemical Names and Formulas 9.1 Naming Ions 9.2 Naming and Writing.
Chemistry Introduction to Chemistry Honors Biology Ms. Kim.
Chemical Bonding No one wants to be alone. Why atoms bond Most atoms are not found alone in quantity in the universe, they are bonded to other atoms Most.
Topic 7 Topic 7 Topic 7: Types of Compounds Table of Contents Topic 7 Topic 7 Basic Concepts Additional Concepts.
8.1 Molecular Compounds > 1 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Chapter 8 Covalent Bonding 8.1 Molecular Compounds.
Chemistry Chemical Interactions Ch. 1 Bell Work 1.What is matter? 2.What are the three states of matter? 3.What is an atom?
Ch. 12 Chemical Bonding 12.1 Ionic, covalent and polar covalent bonds. A bond is a force that holds atoms together. Ionic Bonding a. When a metal reacts.
Conductivity A Conductor is a substance that allows electricity to pass through it. An Insulator is a substance that will not allow electricity to pass.
Atoms, Elements, Compounds, and Ions Atom basic building block of all matter Element Substance that consists of only one type of atom. Molecule has two.
Molecules and Ions Image courtesy of
Learning Chemical Formulas. Simple Ionic Compounds Concept: Ionic Formulas are formed from positive and negative ions. Fact 1: Positive ions are formed.
© 2016 SlidePlayer.com Inc. All rights reserved.