1 Periodic Table. 2 Bohr Model 3 Energy of Atomic Sublevels.

Slides:

Advertisements

Similar presentations

Trends in the periodic table:

Advertisements

Electronegativity A measure of the ability of an atom that is bonded to another atom to attract electrons to itself. Trend: Increases from left to right.

Trends in the Periodic Table

Consider the Diagram Below…

Periodic Trends.

5 – 3 Electron Configuration and Periodic Properties.

 There are general trends in the properties of atoms and their ions with increasing atomic number.  These trends can be explained using the periodic.

The Periodic Law Electron Configuration and Periodic Properties.

Aim: What are the Properties of Groups and how does the atomic radius change across a period and down a group ? DO Now: 1. Write down the electron configuration.

Why Does Sodium Have a Much Higher Second Ionization Energy? 1 st 0.5 kj/mol 2 nd 4.6 kj/mol.

For Test #7: The Periodic Table The Periodic Table 1)Dimitri Mendeleev – 1st to publish a periodic table. 2) The Periodic Law: When arranged by increasing.

Periodic Table & Periodicity Ms Piela Durfee High.

Periodic Trends Analysis Cont.

Drill – 11/19 What is meant by “periodic trend”?.

3 properties of elements Atomic radius Ionisation energy Electronegativity.

For Test #6: The Periodic Table

WHAT ARE THE PERIODIC TRENDS?. Periodic Trends All information in contained in table S Predictable properties/changes that occur as we move down groups.

Trends in the Periodic Table

Section 11.3 Atomic Orbitals 1.To learn about the shapes of the s, p and d orbitals 2.To review the energy levels and orbitals of the wave mechanical model.

1 Periodic Trends. 2 Early Design Changes developed by Dmitri Mendeleev in the mid- 1800s –Organized elements by mass into rows and columns –Found elements.

Academic Chemistry Class Notes April 9, 2015 Periodic Trends of the Elements.

Electron Configurations

 Number that specifies the properties of the atomic orbitals  Tells us the distance from the nucleus and the shape of the orbital.

Periodic Trends.

ALL Periodic Table Trends

Periodic Table Basics. Finding the number of Atomic Particles # of protons = to the atomic # # of electrons = to the atomic # To determine the # of neutrons.

Periodic Table Trends. Atomic Radius As you move down a group, atomic radius increases The number of energy levels increases as you move down a group.

Ionization Energies Revised 11/20/11. Ionization energy The energy needed to remove an electron completely from at atom. Depends upon …. The attraction.

Periodic table trends.

Graphs on the web. Atomic Radius vs Atomic Number The distance from the centre of the nucleus to the outermost electron. As the number of energy levels.

Dimitri Mendeleev-organized the first periodic table—arranged in order of increasing atomic mass; found gaps which he predicted were elements that existed.

13.4 Periodic Trends in Atomic Size Remember that, according to the quantum mechanical model, an atom does not have a specifically defined boundary that.

– a unit of matter; the smallest unit of a chemical element.

Periodic Table Trends. (1) Atomic Radius As one goes from left to right across a period, the atomic radii decreases. Reason: All the elements in a period.

Electron Arrangement. Energy Levels Electrons that are closer to nucleus have lower energy Further away = Higher energy So the further away from the nucleus.

TRENDS IN THE PERIODIC TABLE. Important Definitions  Trend : predictable change in a particular direction  Electron Shielding : inner electrons shield.

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?

Periodic Trend Notes. the attraction that valence electrons feel from the nucleus depends upon the overall charge of the nucleus and the distance between.

© Copyright Pearson Prentice Hall Slide 1 of 31 Periodic Trends > Types of Periodic Trends 4 Periodic Trends 1.Atomic Radii (AR) 2.Ionization Energy (IE)

Periodic Trends. Atomic Radius Defined as half the distance between the nuclei of two atoms Going across the periodic table ◦ But why are they smaller.

Periodicity: The arrangement of the elements in order of their atomic numbers so that elements with similar properties fall in the same column, or group.

Periodic Trends Notes Chemistry Mrs. Stoops. Periodic Trends Really only considering the “s” and “p” section on the periodic table. Trends are all “opposites.

Periodic Trends Notable trends of the table. What are periodic trends on the periodic table? The predictable pattern by which properties of elements change.

Periodic Trends.

Periodic Trends Chemistry 5(C). Learning objectives Use the periodic table to identify and explain trends in – Atomic and ionic radii – Electronegativity.

Periodic Trends Learning the periodic table. Three major trend seen in the periodic table Radius of the atom –Distance between the nucleus and outermost.

Periodic Trends. Chemical Periodicity Atoms participate in chemical reactions in order to fill their outermost s and p sublevels.

Review Questions (Answers are on Slide 4) U sing the periodic tables on the next two slides, answer the following: 1) Oxygen (O) and selenium (Se) are.

Wednesday, October 21 st, 2015 Bohr Model of the Atom.

Warm up What part of the atom has a positive charge and where is it found?

The atomic radius increases down Group 2. There are more filled energy levels between the nucleus and the outer electrons, which are more shielded.

Atoms, Isotopes, and Bohr!

General Trends in P.T.: Atomic Number Mass Number Protons Protons + Neutrons.

Atomic Structure Quantum Numbers.  specify the properties of orbitals and of electrons in orbitals  the first three numbers describe: main energy level.

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.

New Way Chemistry for Hong Kong A-Level Book 1 1 Chapter 5 Electronic Configurations and the Periodic Table.

Factors Affecting Periodicity Periodic Trends: Atomic Radius: the distance from the center of the nucleus to the outermost electron (how big an atom is)

 Bond radius  Ionization Energy  Electronegativity  Electron Affinity*

Atomic Structure Notes. Thomson Model The “pudding” had a positive charge and the “plums” had a negative charge.

8 Periodic Table COURSE NAME: CHEMISTRY 101 COURSE CODE:

Periodic Properties Cartoon courtesy of NearingZero.net.

Electron Configurations 03/28/12. N. Bohr 1913 Electrons travel in definite paths. Electrons jump between levels from path to path. Bohr Model of the.

Parts of an Atom Proton, Neutron & Electron Proton (p+)

Periodic Properties of the Elements © 2009, Prentice-Hall, Inc. Chapter 7 Periodic Properties of the Elements.

Relating Electron Configuration to the Periodic Table 1s 2s 3s 4s 5s 6s 7s 2p 3p 4p 5p 6p 7p 3d 4d 5d 6d 4f 5f Au Au (1s 2 79 e - 2s 2 2p 6 3s 2 3p 6 4s.

CHEMISTRY December 4, 2014 LAB 07 – GRAPHING TRENDS OF PERIODIC TABLE.

Periodic Trends.

Electrons in outermost shell Bohr model or group number

VALENCE ELECTRONS The valence electrons are the electrons in the outermost shell or energy level of an atom. The valence electrons are the ones involved.

Presentation transcript:

1 Periodic Table

2 Bohr Model

3 Energy of Atomic Sublevels

4 Basic Premises Using deductive reasoning, create a rough plot of Atomic radius as a function of atomic number. (1) Radius is dependent upon outermost electrons (2) Nucleus is positive (3) Electrons are negative (4) Opposites attract (5) Electrons can occupy only specific energy levels

5 Atomic Weight

6 Atomic Radius Complete the graph

7 Atomic Radius

8 1st Ionization Energy Complete the Graph

9 1st Ionization Energy