Presentation is loading. Please wait.

Presentation is loading. Please wait.

Chapter 2: Molecules, Ions, and Compounds

Published byRose Hubbard Modified over 5 years ago

Similar presentations

Presentation on theme: "Chapter 2: Molecules, Ions, and Compounds"— Presentation transcript:

1 Chapter 2: Molecules, Ions, and Compounds
MACROSCOPIC SCALE Elements combine to make compounds. ATOMIC SCALE Atoms combine to make molecules, or extended structures.

2 What we’ll cover… Compound Formulas Ions Ionic Compounds
Monatomic Polyatomic Ionic Compounds Molecular Compounds Other types of extended Structures

3 Compound Formulas Examples: NaCl CH3OH (NH4)2SO4

4 Three Types of Compounds
Molecular Covalent Extended Covalent Ionic

5 Types of Formulas

6 IONS Cations Formed by losing electrons. Have a positive charge.
Formed mainly from metals.

7 IONS Cations Formed by losing electrons. Have a positive charge.
Formed mainly from metals. Anions Formed by gaining electrons. Have a negative charge. Formed mainly from nonmetals.

8 Monatomic Ions- Formed from single atoms

9 Naming IONS Cations Name of element + “ion” Na+ = sodium ion
Mg2+ = magnesium ion

10 Naming IONS Cations Name of element + “ion” Na+ = sodium ion
Mg2+ = magnesium ion Anions Name of element with –ide ending + “ion” Cl- = chloride ion O2- = oxide ion

11 Polyatomic Ions you need to know

12 Ionic Compound Formulas
Total cation charge = Total anion charge Ex: Na+ and Cl- make ________

13 Ionic Compound Formulas
Total cation charge = Total anion charge Ex: Na+ and Cl- make NaCl Mg2+ and Cl- make ________

14 Ionic Compound Formulas
Total cation charge = Total anion charge Ex: Na+ and Cl- make NaCl Mg2+ and Cl- make MgCl2 NH4+ and SO42- make _________

15 Naming Ionic Compounds
Name = cation name + anion name Ex: NaCl = NH4Br =

16 Molecular Compounds Nonmetal + nonmetal gives molecular compound
Ex: C + O S + O C + H

17 Aside on gas prices… Propane Butane Jet Fuel Gasoline Diesel/Heating
Longer molecules(asphalt/tar) Crude oil

18 Predicting Molecular Compound Formulas

19 Naming Molecular Compounds
Binary Compounds form between 2 elements

20 Naming Molecular Compounds
Binary Compounds form with 2 elements Element with highest group # named last, like it’s an anion.

21 Naming Molecular Compounds
Binary Compounds form with 2 elements Element with highest group # named last, like it’s an anion. Use prefixes to indicate numbers: 2 = di 3 = tri 4 = tetra 5 = penta

22 Network Solids Held together like a molecule Large and extended

Download ppt "Chapter 2: Molecules, Ions, and Compounds"

Similar presentations

Chapter 2: Molecules, Ions, and Compounds MACROSCOPIC SCALE Elements combine to make compounds. ATOMIC SCALE Atoms combine to make molecules, or extended.

Chapter 2: Molecules, Ions, and Compounds MACROSCOPIC SCALE Elements combine to make compounds. ATOMIC SCALE Atoms combine to make molecules, or extended.
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. 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.

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

Ionic Bonding. CA Standards  Students know atoms combine to form molecules by sharing electrons to form covalent or metallic bonds or by exchanging electrons.
Chemistry Chapter 8 Notes #1 Ions Compounds  2 or more elements combined Example: Sodium + Chlorine = Sodium Chloride (which is table salt) A compounds.

Chemistry Chapter 8 Notes #1 Ions Compounds  2 or more elements combined Example: Sodium + Chlorine = Sodium Chloride (which is table salt) A compounds.
Chapter 2: Molecules, Ions, and Compounds MACROSCOPIC SCALE Elements combine to make compounds. ATOMIC SCALE Atoms combine to make molecules, or extended.

Chapter 2: Molecules, Ions, and Compounds MACROSCOPIC SCALE Elements combine to make compounds. ATOMIC SCALE Atoms combine to make molecules, or extended.
Chapter 2: Molecules, Ions, and Compounds MACROSCOPIC SCALE Elements combine to make compounds. ATOMIC SCALE Atoms combine to make molecules, or extended.

Chapter 2: Molecules, Ions, and Compounds MACROSCOPIC SCALE Elements combine to make compounds. ATOMIC SCALE Atoms combine to make molecules, or extended.
T HE B OOKSTORE NOW HAS CLICKERS ! H ELP C ENTER & G RAPHING A SSIGNMENT Announcements.

T HE B OOKSTORE NOW HAS CLICKERS ! H ELP C ENTER & G RAPHING A SSIGNMENT Announcements.
Objectives Know atoms combine to form molecules by sharing electrons to form covalent or metallic bonds or by exchanging electrons to form ionic bonds.

Objectives Know atoms combine to form molecules by sharing electrons to form covalent or metallic bonds or by exchanging electrons to form ionic bonds.
UNIT FOUR: Matter and its Changes  Chapter 12 Atoms and the Periodic Table  Chapter 13 Compounds  Chapter 14 Changes in Matter  Chapter 15 Chemical.

UNIT FOUR: Matter and its Changes  Chapter 12 Atoms and the Periodic Table  Chapter 13 Compounds  Chapter 14 Changes in Matter  Chapter 15 Chemical.
Chemical Names and Formulas Molecules and Molecular Compounds 1.Molecule- the smallest electrically neutral unit of a substance that still has the properties.

Chemical Names and Formulas Molecules and Molecular Compounds 1.Molecule- the smallest electrically neutral unit of a substance that still has the properties.
Ionic and Covalent Bonding Chapter 8/9. Chemical Formula Indicates the composition of a compound and the # of atoms in one molecule of an element Molecule.

Ionic and Covalent Bonding Chapter 8/9. Chemical Formula Indicates the composition of a compound and the # of atoms in one molecule of an element Molecule.
Section 2.4 Ionic Compounds. Ionic Compounds In this section… a.Monatomic and Polyatomic ions b.Ionic compound formulas c.Naming ionic compounds d.Covalent.

Section 2.4 Ionic Compounds. Ionic Compounds In this section… a.Monatomic and Polyatomic ions b.Ionic compound formulas c.Naming ionic compounds d.Covalent.
Ch 4 Names of Compounds  We will learn to name binary molecular compounds and both binary and polyatomic ionic compounds.  The most important skill is.

Ch 4 Names of Compounds  We will learn to name binary molecular compounds and both binary and polyatomic ionic compounds.  The most important skill is.
Chemical Reactions Ions, Molecules and Compounds.

Chemical Reactions Ions, Molecules and Compounds.
Molecular Compounds.  Held together by covalent bonds  Elements involved are nonmetals  Binary Compound: two nonmetals  Example: H 2 O Molecular Compounds.

Molecular Compounds.  Held together by covalent bonds  Elements involved are nonmetals  Binary Compound: two nonmetals  Example: H 2 O Molecular Compounds.
Putting Atoms Together

Putting Atoms Together
1) Bell Ringer: What are valence electrons? What is the difference between an ionic and molecular compound? 2) Worksheet #13 3) QUIZ #6.

1) Bell Ringer: What are valence electrons? What is the difference between an ionic and molecular compound? 2) Worksheet #13 3) QUIZ #6.
What is an atom ? Smallest unit of matter. Atoms combine together to form molecules Atoms are made of subatomic particles: Protons Neutrons Electrons.

What is an atom ? Smallest unit of matter. Atoms combine together to form molecules Atoms are made of subatomic particles: Protons Neutrons Electrons.
Writing Formulas and Naming Compounds Chapter 20 Section 3.

Writing Formulas and Naming Compounds Chapter 20 Section 3.

Similar presentations

Ads by Google