Warm up (11/7 and 8) Atoms HW #3 out on desk, please.

Slides:

Advertisements

Similar presentations

Wed, Sept 23, 2009 Learning Goal – to understand Review for atomic quiz Atomic Quiz Discuss 13.3 Homework.

Advertisements

Atomic Structure Topic 3.

What can happen when an atom absorbs energy?

Chemistry The structure of the atom.. The Atomic Theory: All matter is made of atoms, which are particles too small to be seen. Each element has its own.

It’s Friday!!! Turn in your homework (definitions). The atomic number tells the number of positively charged ________ in the nucleus of an atom. The mass.

TAKE A …. GUIDED NOTES PAGE ATOMIC MASS W.S. ….OFF MY DESK.

Dalton’s Atomic Theory. The Scanning Tunneling Electron Microscope.

Drawing a Bohr-Rutherford Diagram. History Ernest Rutherford discovered that atoms contained a small dense positively charged nucleus surrounded by negatively.

Section 4.3 Modern Atomic Theory

Average Atomic Mass What is average atomic mass? Average atomic mass is the weighted average of the atomic masses of the naturally occurring isotopes of.

Warm Up When will light (photon) emit from an atom? Protons, Neutrons, and Electrons for 195 Au An atom has 14 neutrons and 19.

Physical Science: Ch 4 Notes

THE ATOM AND THE PERIODIC TABLE. STATE STANDARD  SPI Use the periodic table to determine the properties of an element.

Atoms. Atoms are the main building block of all matter All chemical and physical properties of matter are a result of how the atoms in the matter behave.

Warm Up Electrons are responsible for the atomic _____ (mass or volume) 2. List the number of protons, electrons and neutrons for the following.

ATOMIC SCIENTISTS Video 3.1. Dalton (1808) Experiments lead to his discoveries:  Elements are made up of identical atoms which cannot be created or destroyed.

By the end of the day, Students will be able to: What is the average atomic mass? SWBAT: Calculate average atomic mass of an isotope Catalyst: What is.

A chemical symbol is a short or abbreviated way to write the name of an element. Where do element’s symbols come from? Elements are named to honor scientists,

Do Now: You may use your notes 1. Who discovered protons and the nucleus? 2. Who discovered electrons and proposed the plum pudding model? 3. Who proposed.

Research on Scientist 9/25 In your composition book, use the title above, update your Toc & Follow the directions for what you need to find from your.

The Structure of the Atom

Atomic Structure.

Wednesday 9-30 and Thursday 10-01

What’s wrong with this picture?

Structure of the Atom.

Aim: What is the internal structure of an atom?

Calculating Average Mass

The structure of the atom.

Welcome! (10/31 and 11/2) 99 You’ll need your Periodic Table to:

Warm-up! (11/3 and 6) On desk: Green Lab 6 WS, Atoms WS #2

Thursday October 1, 2015 TO DO RIGHT NOW:

Estimating the Mass Number:

Catalyst: 1. Draw a picture of the atom. Label its parts

Bohr's Model of the Atom.

Drill Determine the following for Na: Name of Element

Explaining the Periodic Table

All substances are made from atoms.

All substances are made from atoms.

Bohr's Model of the Atom.

Distinguishing Between Atoms

Unit 3 – Atoms.

Atomic Structure.

The Structure of the Atom

Atoms, Elements, and the Periodic Table

Bohr's Model of the Atom.

Mrs. Duddles Q1 - Chemistry

Structure of an Atom.

Do First Actions: Get the 4 sheets: Atomic Structure Interactive, Calculating Protons, Neutrons, and Electrons Sheet, Bohr Model worksheet and It’s Natural.

Atomic Structure The Bohr Model.

AP Chemistry Unit 2 – Atoms, Molecules, and, Ions

Bohr's Model of the Atom.

The Atom By: M. Silverman.

Atomic Structure Test Review.

Things to know for tomorrow’s quiz…

CHEMISTRY November 12, 2014 ELECTRONS.

Atoms and the Periodic Table

9/21-24 History of the Atom 13 ▲ Warm up:

Aim: What is the internal structure of an atom?

Atomic Structure Bellringer: What is the charge of the following:

ELEMENTS AND THE PERIODIC TABLE

ATOMIC STRUCTURE THE NUCLEUS: 1) THE PROTON:

Chapter Warm - Up 1. Describe the different parts of an atom.

Wednesday 9/21 Day 1 2- Fill out your Agenda. Video clip Wednesday!

Chapter 4 Introduction to Atoms

Do Now & Announcements Take out HW to be checked Nuclear Quiz FRI 12/5

All substances are made from atoms.

If starting Candium Lab, sit in the back and start.

“Problems are not stop signs, they are guidelines.”

The Basic Unit of Matter

Presentation transcript:

Warm up (11/7 and 8) Atoms HW #3 out on desk, please. See if you are ready for the quiz: Imaginary element Romium has four isotopes. One has a mass of 312.3 amu and makes up 71.5% of the isotopes. A second weighs 310.9 amu and makes up 10.0%, a third weighs 315.6 amu and makes up 5.6%, and the fourth weighs 317.2 amu and makes up the rest of the isotopes on earth. What is the atomic mass of Romium? 132.96 amu

Up to 30 minutes! Go over HW WS #3 Then, quiz time! My periodic table and my calculator for your use! Up to 30 minutes!

Back to Atomic History

From Nuclear back to the whole atom…Niels Bohr (1920s)

Back to ATOMIC THEORIES and HISTORY! BBC Video Clip From Rutherford to Bohr! New model of the atom 20-28 min

Rutherford versus Bohr Models

Niels Bohr: Theories (1920s) Electrons are in “orbits” around the nucleus Color comes from changes in “orbits” This can be shown through different colors given off by different elements

Where does color and light come from? ELECTRON MOVEMENT gives off energy, which is seen as colorful light!

Lab #7: Light Lab! Guiding Question: Does Bohr’s model work for all atoms? Pre-lab now: Fill out the data boxes (11 of them) before you come to class so we’re ready to go!

Homework Day 6 Light Lab #7 Handout read entirely Pre-lab finished (all boxes prepped and ready to go for next class!) If you have your own colored pencils, bring them for NEXT CLASS!