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Periodic Trends Atomic Radius Ionization Energy Electronegativity

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Presentation on theme: "Periodic Trends Atomic Radius Ionization Energy Electronegativity"— Presentation transcript:

1 Periodic Trends Atomic Radius Ionization Energy Electronegativity
What is atomic radius? Explain trend (left to right): Explain trend (top to bottom): What is ionization energy? Explain trend (left to right): Explain trend (top to bottom): Electronegativity What is electronegativity? Explain trend (left to right): Explain trend (top to bottom): What is metallic character? Explain trend (left to right): Explain trend (top to bottom): Metallic Character What is reactivity? Explain trend (for metals): Explain trend (for nonmetals): Reactivity **Noble gases have zero reactivity because they have a full valence shell.

2 Preview Periodic Trends Atomic Radius Ionization Energy
What is atomic radius? Explain trend (left to right): Explain trend (top to bottom): What is ionization energy? Explain trend (left to right): Explain trend (top to bottom): Electronegativity What is electronegativity? Explain trend (left to right): Explain trend (top to bottom): Preview What is metallic character? Explain trend (left to right): Explain trend (top to bottom): Metallic Character What is reactivity? Explain trend (for metals): Explain trend (for nonmetals): Reactivity **Noble gases have zero reactivity because they have a full valence shell.

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Periodic Trends. Atomic Radius Atomic Radius (size) is the distance between the nucleus and the outer electrons in an atom.

Periodic Trends. Atomic Radius Atomic Radius (size) is the distance between the nucleus and the outer electrons in an atom.
Trends in the Periodic Table

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Summary of Periodic Trends Topic #12 continued…..

Summary of Periodic Trends Topic #12 continued…..
A typical problem – you are given a pair of elements, and asked to predict which would be more reactive. You can do this using periodic trends.

A typical problem – you are given a pair of elements, and asked to predict which would be more reactive. You can do this using periodic trends.
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.
Chapter 5 The Periodic table

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Bell Ringer 1. How many valence electrons does N have? 2. Which of the 3 “classes” on the periodic table displays properties of both metals and nonmetals?
 Valence electrons: Electrons in the highest energy level  These electrons are the ones that bond!!  The group A # matches how many valence electrons.

 Valence electrons: Electrons in the highest energy level  These electrons are the ones that bond!!  The group A # matches how many valence electrons.
UNIT 5: THE PERIODIC TABLE. Organizing the Elements How would you organize the people in this room? How did chemists begin to organize the known elements?

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Periodic Table Trends: Atomic Radius & Ionization Energy pg

Periodic Table Trends: Atomic Radius & Ionization Energy pg
Periodic Table. Dmitiri Mendeleev, 1871 Listed the elements in columns in order of increasing atomic mass.

Periodic Table. Dmitiri Mendeleev, 1871 Listed the elements in columns in order of increasing atomic mass.
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.
Periodic Trends. characteristicsdescribe characteristics of elements across periods and among families absoluteare not absolute – represent general trends.

Periodic Trends. characteristicsdescribe characteristics of elements across periods and among families absoluteare not absolute – represent general trends.
Periodicity Unit Part 3. Periodic Law When arranged by increasing atomic number, the chemical elements display a regular and repeating pattern of chemical.

Periodicity Unit Part 3. Periodic Law When arranged by increasing atomic number, the chemical elements display a regular and repeating pattern of chemical.
Periodic Trends in the Properties of the Elements

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Periodic Properties Chemical and physical properties of the elements change with their position in the periodic table.

Periodic Properties Chemical and physical properties of the elements change with their position in the periodic table.

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