+ Ionic Compounds Write down the stuff in red. + Atoms vs. Molecules vs. Compounds ATOMS are the smallest particles of any element that is still that.

Slides:

Advertisements

Similar presentations

FORMING COMPOUNDS. What is a compound? A substance made of two or more elements CHEMICALLY combined. A substance made of two or more elements CHEMICALLY.

Advertisements

Atoms can attain a more stable arrangement of electrons in their outermost shell by interacting with one another. An ionic bond is formed when electrons.

Ionic Compounds: Compounds that are made of oppositely charged ions.

Chapter 3 Ionic Compounds.

Compound 2 or more elements combined in a fixed proportion Binary Composed of 2 elements.

Ionic and Covalent Bonding 1. Bonding Atoms with unfilled valence shells are considered unstable. Atoms will try to fill their outer shells by bonding.

Ionic Bonds. What is an ion? An atom that gains or loses electrons is an ion. A cation loses electrons and becomes a positive ion An anion gains electrons.

IONIC BONDING When an atom of a nonmetal takes one or more electrons from an atom of a metal so both atoms end up with eight valence electrons.

Ionic and Covalent bonding. Bonds All atoms are trying to get enough electrons so that their valence shell is full. All atoms are trying to get enough.

Activity Directions: Use the worksheet to guide you as you create the formulas. You will be matching the blue and yellow elements according to their valance.

Naming Ionic Compounds and Formulas. Ionic Compounds Chemical Name: The chemical name tells you what ions (charged atoms) are in the compound eg. Sodium.

Ionic Bonding. CA Standards  Students know atoms combine to form molecules by sharing electrons to form covalent or metallic bonds or by exchanging electrons.

Topic: Lewis Dot Diagrams for Ionic Compounds

Chemistry grade 10. Electron arrangement Chemical compounds are represented using chemical names and chemical formulas. To tell different compounds.

Compounds and their Bonds

Introduction to Chemical Compounds Why do elements combine?

- What are Ionic Bonds? - Writing Compounds. - Naming Ionic Bonds - Writing Ionic Compounds from names.

Naming ionic compounds

Chemical Bond  The attraction between atoms that holds them together and makes them function as a unit.

 When non-metals gain electrons to become ions, the name of the ion changes its ending to “ide”.  Fluorine fluoride  Chlorine chloride  Oxygen oxide.

Ionic Formulas Turning chemistry into algebra. REVIEW We can tell how many electrons an atom will gain or lose by looking at its valence electrons. Metals.

Ionic Compounds. Ion formation Octet rule- atoms want a full valence shell ▫_____ valence electrons for most atoms ▫____ and atoms that become isoelectronic.

Ionic Formulas Turning chemistry into algebra. REVIEW We can tell how many electrons an atom will gain or lose by looking at its valence electrons. Metals.

Ionic Bonds & Ionic Compounds Types of ions – Monatomic ions - ions formed from a single atom. Ca 2+, K +, Al 3+, Cu +, Cu 2+, Fe 2+, Fe 3+, Cl -, O 2-,

Rules For Writing Chemical Formulas and Naming Compounds IPC 2007.

 atoms that are now stable because they have gained or lost valence electrons resulting a positively or negatively charged atom.

How to Hold it Together Ionic Bonds Ch. 5, Sec. 2.

Chemical Bonds Chapter 20. Sec. 1 - Combined Elements Elements make  compounds Properties of compounds are different from elements Ex: Sodium Chloride,

Naming Ionic Compounds

IPC Notes Types of Bonds. Remember… Atoms combine by gaining, losing or sharing electrons in order to become chemically stable. Atoms become chemically.

Intro to Names and Formulas for Ionic Compounds November 2, 2015.

Ionic Bonds and Compounds. The Octet Rule The Octet rule states that elements gain or lose electrons to attain an electron configuration of the nearest.

Ionic Bonding. What makes an atom most stable? Electron configuration – Electron configuration – When the highest occupied energy level is filled with.

Ionic Bond Formation. 1. Subtract the electronegativity values. An ionic bond should have a value GREATER THAN Is the compound made from a metal.

IONIC & COVALENT BONDING

COMPOUNDS chemical combination of two or more different elements chemical combination of two or more different elements two types: two types: IONIC IONIC.

CHEMISTRY PART 6 Ionic Compounds Charges of transition metals will be given in the periodic table as their formation is complicated.

Chemistry Unit 4 Bonding Why do atoms bond? -to become more stable -a full valence shell of electrons -valence shell = outside shell How do atoms bond?

CHEMICAL BONDING the combining of atoms of elements to form new substances (compounds; two or more elements combined) Chemical bonding depends on the.

Click on “Slide Show” Click on “From Current Slide” Or “From Beginning”

Ch. 7-1a Naming Ions. POINT > Name and identify the charge of monatomic ions POINT > Define and determine formulas for binary compounds POINT > Define.

Making Molecules and Compounds

Ions Continued Unit 3 Topic 2. Charges  Because elements in the same group (column) of the Periodic Table have the same number of valence electrons 

Lesson 1:Class Starter What is the chemical symbol for silicon?

Molecules Molecule is combination of two or more atoms, these may be of the same element as oxygen molecule O 2 or different elements as in the hydrogen.

ion: a charged atom that has gained or lost an electron  atoms that lose electrons become ___ ions (called cations)  atoms that gain electrons become.

Ionic & Covalent Bonding

NEGATIVE POSITIVE ION CATION ANION

T. Trimpe Bonding Basics T. Trimpe

Unit 5 Writing and Naming Compounds

Ions and Ionic Bonding.

Goal: To master Learning Targets #1-5 on chemical bonding

NC Standards Students know atoms combine to form molecules by sharing electrons to form covalent or metallic bonds or by exchanging electrons to form ionic.

Ions & formation of Ionic compounds

Ionic Bonding Notes

Chemical Bonding Physical Science.

T. Trimpe Bonding Basics 8th Grade Science T. Trimpe

Bonding Basics 8th Grade Science.

What is the goal of the atom in ionic bonding?

NC Standards Students know atoms combine to form molecules by sharing electrons to form covalent or metallic bonds or by exchanging electrons to form ionic.

Write down the stuff in red

T. Trimpe Bonding Basics T. Trimpe

Presentation transcript:

+ Ionic Compounds Write down the stuff in red

+ Atoms vs. Molecules vs. Compounds ATOMS are the smallest particles of any element that is still that element Example: an atom of hydrogen (H) or an atom of calcium (Ca) MOLECULES are groups of 2 or more atoms Example: H 2 or O 2 or H 2 0 or HCl COMPOUNDS are groups of 2 or more atoms of different elements Example: H 2 0, HF, NH 3 or CH 4 2

+ Forming compounds When atoms move close together, their valence electrons interact A bond will form if the electrons become more stable (become an octet) Electrons become more stable by either: Losing electrons to other atoms and becoming an CATION Gaining electrons from other atoms and becoming an ANIONARING electrons 3

+ Types of bonding There are two main types of chemical bonding: IONIC BONDING When atoms gain or lose (transfer) electrons to other atoms Example: Na + Cl = NaCl COVALENT BONDING (We’ll get to this later) When atoms share electrons with other atoms Example: H 2 + O = H 2 0 4

+ Ionic bonding An ionic compound contains a POSITIVE ion (usually a METAL) and a NEGATIVE ion (usually a non-metal) EX: Na + +Cl - = NaCl (positive metal) (negative non-metal)ionic compound In ionic bonding one or more electrons TRANSFERS from each atom of METAL to each atom of NON- METAL 5

+ Example of an Ionic Compound Sodium (Na) has 1 valence electron Chlorine (Cl) has 7 valence electron Sodium loses its 1 valence electron and gives it to Chlorine Sodium has become less negative (more positive) and now has a +1 charge Chlorine has become more negative and now have a -1 charge 6

+ NaCl Ionic Bonding A C B 7

+ Activity Break! Girls on the left side of the classroom (near my desk) You are metals Boys on the right side of the classroom (by the maps) You are non-metals Wait further instructions! Mini marshmallows are your electrons. Metals need to find non-metals to give their electrons to in such a way that you both have full valence shells (0 marshmallows or 8)

+ Naming Ionic Compounds Ionic compound names have 2 parts to it, one for each ion in it: The positive metal ion is always written FIRST The negative non-metal ion is always written SECOND The non-metal’s name always ends with the suffix “ide” metal non-metal + ion - ion Example: Potassium Iodide (positive metal) (negative non-metal, ending with –ide) 9

+ Names of Ionic Non-Metals ElementIonic NameSymbol FlourineFlourideF-F- ChlorineChlorideCl - BromineBromideBr - IodineIodideI-I- OxygenOxideO 2- SulfurSulfideS 2- SeleniumSelenideSe 2- NitrogenNitrideN 3- PhosphorusPhosphideP 3- 10

+ Practice Naming Write down the proper name of the ionic compound formed from the following ions: Magnesium +Phosphorus= Calcium +Bromine= Aluminum + Oxygen= Lithium+Nitrogen= Zinc+Sulfur= 11 Magnesium Phosphide Calcium Bromide Aluminum Oxide Lithium Nitride Zinc Sulfide

+ Naming Ionic Compounds from Formulas If you just have the formula, how do you name it? Example: CaI 2 1. Identify and name the metal ion in the compound  Ca 2+ is the metal. Its name is calcium. Calcium 2. Identify and name the non-metal ion in the compound  I - is the non-metal. Its name is Iodine. Iodine 3. Change the name of the non-metal so it ends with “ide” Iodide 4. Write the two together to name the ionic compound Calcium Iodide 12

+ Practice Naming from Formulas Na 3 P 1. Name the positive metal ion 2. Name the negative non-metal ion 3. Change the suffix to “ide” 4. Write out the name 5. Bam! 13 Sodium Phosphorus Phosphide Sodium Phosphide

+ Writing Formulas for Ionic Compounds Example: Aluminum Flouride 1. Identify the POSITIVE ion and the NEGATIVE ion and list their charges  Aluminum: Al 3+  Flouride: F - 2. Figure out how many of each ion you need to balance out the charges  Al 3+ := + 3  F - : = Notice how many of each ion you needed to balance the charges  1 Al 3+ ion  3 F - ions 4. Write out the formula by listing the ions. Indicate how many of each ion are there by writing the number in a subscript beside it  AlF 3 14

+ Practice Writing Ionic Formulas Example: magnesium nitride 1. Identify each ion and list its charge 2. Figure out how many of each ion you need to balance the charges 3. Note how many of each ion you needed 4. Write out the formula and indicate how many of each ions are there with a subscripted number 5. Bam! 15 Mg 2+ N 3- Mg 2+ = = +6 N 3- = =-6 3 Mg 2+ Ions 2 N 3- Ions Mg 3 N 2