Presentation is loading. Please wait.

Presentation is loading. Please wait.

Groups and Periods.

Published byRatna Darmadi Modified over 5 years ago

Similar presentations

Presentation on theme: "Groups and Periods."— Presentation transcript:

1 Groups and Periods

2 Groups Go up and down The group is determined by the number of electrons in the outer energy level

3 Groups How many electrons can each energy level hold? Level 1 – 2

4 What group is this element?
How many electrons in outer level? 1 So it is in group 1.

5 What group is this element?
How many electrons in outer level? 6 So it is in group 6 (16).

6 What group is this element?
How many electrons in outer level? 7 So it is in group 7 (17).

7 What group is this element?
How many electrons in outer level? 1 So it is in group 1.

8 Periods Go left to right
The period is determined by the highest energy level

9 What period is this element?
How many energy levels? 4 So it is in period 4.

10 What period is this element?
How many energy levels? 3 So it is in period 3.

11 What period is this element?
How many energy levels? 2 So it is in period 2.

12 What period is this element?
How many energy levels? 3 So it is in period 3.

Download ppt "Groups and Periods."

Similar presentations

Electron Arrangements Lewis Dot Structures. Learning Objectives Express the arrangement of electrons in atoms using Lewis valence electron dot structures.

Electron Arrangements Lewis Dot Structures. Learning Objectives Express the arrangement of electrons in atoms using Lewis valence electron dot structures.
Valence Electrons & Lewis Dot Structure Unit 3.4 The Atom

Valence Electrons & Lewis Dot Structure Unit 3.4 The Atom
Notes – Determining Oxidation Number Who Gains? Who Loses?

Notes – Determining Oxidation Number Who Gains? Who Loses?
Drawing Bohr Models.

Drawing Bohr Models.
Atomic Structure and Chemical Bonds

Atomic Structure and Chemical Bonds
Each column is called a “group”

Each column is called a “group”
How to draw a (Bohr) model of an atom

How to draw a (Bohr) model of an atom
The Periodic Table 10/10/12. The Periodic Table Describing the Periodic Table It arranges all the known elements in an organized chart. Elements are.

The Periodic Table 10/10/12. The Periodic Table Describing the Periodic Table It arranges all the known elements in an organized chart. Elements are.
Daily Science Oct 16 Write the shorthand electron configurations for the following:  Cu  I  F  Hg.

Daily Science Oct 16 Write the shorthand electron configurations for the following:  Cu  I  F  Hg.
III. Periodic Trends. Types of Periodic Trends Atomic size (atomic radius) Ionic size (ionic radius) Ionization energy electronegativity.

III. Periodic Trends. Types of Periodic Trends Atomic size (atomic radius) Ionic size (ionic radius) Ionization energy electronegativity.
Final Exam Review Review 2. Copy down and answer the following questions. You may use your book or notebook if necessary. 1.What are valence electrons?

Final Exam Review Review 2. Copy down and answer the following questions. You may use your book or notebook if necessary. 1.What are valence electrons?
Valence Electrons and Dot Diagrams

Valence Electrons and Dot Diagrams
Review The elements of the Periodic Table are arranged by: Periods – the number of energy levels. Groups – the number of valence electrons. Blocks – the.

Review The elements of the Periodic Table are arranged by: Periods – the number of energy levels. Groups – the number of valence electrons. Blocks – the.
Arrangement of e- e- are arranged in ENERGY LEVELS There are 7 energy levels Level 1 is closest to the nucleus and has the lowest energy Level 7 is farthest.

Arrangement of e- e- are arranged in ENERGY LEVELS There are 7 energy levels Level 1 is closest to the nucleus and has the lowest energy Level 7 is farthest.
1 st Ionization Energy The amount of energy required to remove an electron from an atom. Trend: Increases left to right across a row. Increases bottom.

1 st Ionization Energy The amount of energy required to remove an electron from an atom. Trend: Increases left to right across a row. Increases bottom.
Chemical Bonding Atoms and Valence Electrons. Chemical Bond: the force of attraction that holds atoms together as a result of the rearrangement of electrons.

Chemical Bonding Atoms and Valence Electrons. Chemical Bond: the force of attraction that holds atoms together as a result of the rearrangement of electrons.
Atomic Structure  Atomic Number = # Protons  Atomic Mass = Protons + Neutrons (also called mass number)  If atom is neutral (a charge of zero), electrons.

Atomic Structure  Atomic Number = # Protons  Atomic Mass = Protons + Neutrons (also called mass number)  If atom is neutral (a charge of zero), electrons.
Lewis Structures This is also called the Electron Dot Structure. Look at the highest Energy Level of an atom. Add the number of electrons within that energy.

Lewis Structures This is also called the Electron Dot Structure. Look at the highest Energy Level of an atom. Add the number of electrons within that energy.
Chapter Sixteen: Compounds  16.1 Chemical Bonds  16.2 Chemical Formulas  16.3 Molecules.

Chapter Sixteen: Compounds  16.1 Chemical Bonds  16.2 Chemical Formulas  16.3 Molecules.
Electrons & their arrangement in an atom. Electrons live in something called energy levels. Only so many electrons can be in any energy level. The electrons.

Electrons & their arrangement in an atom. Electrons live in something called energy levels. Only so many electrons can be in any energy level. The electrons.

Similar presentations

Ads by Google