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.

Slides:

Advertisements

Similar presentations

Chapter 7: Ionic and Metallic Bonding

Advertisements

Ionic Compounds and Metals

Chemical Bonding. What is Chemical Bonding? Chemical Bonding is two or more atoms combining by sharing electrons so that a new substance is produced that.

Chapter 7 Ionic Compounds and Metals

Ionic Compounds Notes. The octet rule states that atoms will gain or lose electrons in order to fill the outer valence level of eight electrons. Noble.

Ionic Bond Chapter 5 Section 2.

Identify the elements present in each of the following compounds and the number of each element atom present. Common salt: NaCl Nitric acid:

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 Bonds. Ions and Ionic Bonds Atoms with five, six, or seven valence electrons usually become more stable when this number increases to eight. Likewise,

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 Bonds Section 3. Ion An atom or group of atoms that has become electrically charged.

IONIC COMPOUNDS Chapter 5.8. IONIC COMPOUNDS Recall: Metals form positive ions (+) and non-metals form negative ions (-). Na 1+ Cl 1-

Chapter 5, Section 2: Ionic Bonding

IONIC BONDS Chapter 5, Section2 pp

Bonding Chapter 5.

Chemical Bonds Ionic Bonds.

Chapter 15 Ionic Bonding. Valence Electrons  Do the electron configuration for the following elements Li Be B O F Ne.

Chapter 5 Bonding. When atoms combine they form a chemical bond The force of attraction between two or more atoms.

Chemical Formulas and Names for Ionic Compounds

Ions & Compounds. Ions atoms that have lost or gained electrons do this to get a stable outer shell (8) they now have a charge.

Ionic and Covalent Bonds. Two or more elements chemically combined. Compound.

Section 1-3 Ionic Bonds. Habit Of The Mind #2 I teach my students to manage impulses and delay gratification to attain long term goals.

Find out how atoms or groups of atoms combine to form ionic compounds.

4.1 Representing Ionic Compounds

Ions and Ionic Bonding. Atoms that lose their valence electrons to another atom, the valence electrons are transferred from one atom to another. This.

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

WHAT IS AN IONIC REACTION? A CHEMICAL REACTION THAT INVOLVES LOSS AND GAIN OF ELECTRONS.

*Opposites Attract* Sodium transfers 1 valence electron to chlorine.

The Periodic Table Atomic Number (number of protons) Symbol Atomic Mass Period.

1.2 IONS UNDERSTANDING HOW THE ELECTRONS MOVE INSIDE AN ATOM ALLOWS SCIENTISTS TO CONTROL HOW ATOMS REACT WITH EACH OTHER.

Chapter 2: Sections 3 Ionic Bonds What is an Ion? An atom or group of atoms that has become electrically charged An atom or group of atoms that has become.

Ionic Compounds Names and Formulas. Vocabulary Ion – an atom that has an electrical charge due to the gain or loss of electrons Monatomic – contains one.

Question??? Apples cost $0.50 Pears cost $0.40 You want an apple and have $0.45 Your friend wants a pear and has $0.45 How can you both be happy?

Rules For Writing Chemical Formulas and Naming Compounds IPC 2007.

Bell Ringer # 1 1. Which of the following is the basis for arranging the elements in the modern periodic table? A. Alphabetical order B. Masses of atoms.

Chemistry Writing Formulas.

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

IONIC BONDING. What is an ion?  An ion: an atom or bonded group of atoms with a positive or negative charge Cation: A positively charged ion Cation:

Types of Bonding. There are two types of bonds: Ionic bonds Covalent bonds.

Chemical Bonds I. Why Atoms Combine  Chemical Formulas  Chemical Bonds  Stability.

Ionic Bonds. How Bonds Form Electrons are transferred from a metal to a nonmetal. Ex: NaCl, CaI 2, Fe 2 O 3 -metals form cations (+) (gives away electrons)

Ionic Bonds January 5, th grade Chapter 4.2.

Ch.5, Section 2. What happens when I rub a balloon and then place it on the wall? When I rub the balloon, Electrons are transferred to the surface of.

Ionic Bonds Notes 5-2 Key Ideas: 1. How do ions form bonds? 2. How are the formulas and names of ionic compounds written? 3. What are the properties of.

 Electrically charged atoms or groups of atoms  Atoms gain or lose electrons, the protons remain constant  Example:  Sodium ion:11 protons (11+) 10.

Atoms, Bonding, and the Periodic Table. Warm Up November 14, 2014 – copy the objective How do you determine an element’s valence electrons? Fill out the.

Atoms and Bonding Chapter 5. Valence `and Bonding Valence electrons- electrons on the outermost energy level. The number of valence electrons in an atom.

Valence Electrons and Ions. Valence electrons – electrons that are in the outershell and have the highest energy.

Chemical Bonding A chemical bond is a link between atoms resulting from the mutual attraction of their nuclei and electrons.

Chapter 5 – Atoms & Bonding

Ionic Bonds Chapter 5 Section 2.

Binary Ionic Compounds

How Elements Form Compounds

Mr. Sapalicio Physical science Monterey highlands elementary

5.2 Ionic Bonds Key Concepts: What are ions, and how do they form bonds? How are the formula and names of ionic compounds written? What are the properties.

IONIC BONDS Chapter 4 Section 1.

Section 2 – pg 184 Ionic Bonds

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

Chemical Bonding.

Mr. Gardner 7th Srade Science

Presentation transcript:

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 electrons so that their valence shell is full. This is referred to as the OCTET RULE or This is referred to as the OCTET RULE or Atoms of elements will lose, gain, or share electrons in such a way that their electron configurations contain eight valence electrons. Atoms of elements will lose, gain, or share electrons in such a way that their electron configurations contain eight valence electrons. Elements can do this in several ways. Elements can do this in several ways.

Ionic bonds An ionic bond is the result of attraction between positive and negative ions. An ionic bond is the result of attraction between positive and negative ions. Ionic compounds come together in a way that balances out the charges on the ions. Ionic compounds come together in a way that balances out the charges on the ions. Scientists write compounds a specific way – by a chemical formula. Scientists write compounds a specific way – by a chemical formula. The ions are both represented by their atomic symbol, and the number of atoms of each is represented with a subscript number. The ions are both represented by their atomic symbol, and the number of atoms of each is represented with a subscript number.

For Example A ionic compound containing a magnesium ion with a charge of 2+ bonds with chlorine. A ionic compound containing a magnesium ion with a charge of 2+ bonds with chlorine. Chlorine has a 1- charge so 2 chlorine atoms are needed to balance out the 2+ charge. Chlorine has a 1- charge so 2 chlorine atoms are needed to balance out the 2+ charge. The chemical formula would be MgCl 2. The chemical formula would be MgCl 2.

Naming ionic compounds The name of the positive ion goes first followed by the name of the negative ion. The name of the positive ion goes first followed by the name of the negative ion. Of the negative ion is a single element then the end of its name changes to –ide. Of the negative ion is a single element then the end of its name changes to –ide. NaCl – sodium chloride NaCl – sodium chloride MgCl 2 – magnesium chloride MgCl 2 – magnesium chloride

If the ionic compound is polyatomic the name usually ends in –ate, or –ite If the ionic compound is polyatomic the name usually ends in –ate, or –ite NH 4 NO 3 - ammonium nitrate NH 4 NO 3 - ammonium nitrate

….. See if you can figure out what the chemical formula for a compound containing Sodium (Na) and Chloride (Cl) would be. See if you can figure out what the chemical formula for a compound containing Sodium (Na) and Chloride (Cl) would be. How about a compound of Calcium (Ca) and Carbon (C ) and oxygen (O). How about a compound of Calcium (Ca) and Carbon (C ) and oxygen (O).

Check for understanding Write the chemical formulas for the following compounds. Write the chemical formulas for the following compounds. Sodium bromide Sodium bromide Lithium oxide Lithium oxide Magnesuim sulfide Magnesuim sulfide Aluminum fluoride Aluminum fluoride Potassium nitrate Potassium nitrate Ammonium chloride Ammonium chloride

Properties of ionic compounds Hard, brittle crystals that have high melting points. Hard, brittle crystals that have high melting points. When dissolved in water or melted they conduct electricity. When dissolved in water or melted they conduct electricity.

Covalent bonds