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

Slides:

Advertisements

Similar presentations

Isotope Notation Isotope Notation uses a symbol to convey information about an isotope of a particular element. 23 Na 11.

Advertisements

4.3: HOW ATOMS DIFFER ATOMIC NUMBER

Atomic Mass & Number Isotopes The Periodic Table.

Atomic Structure and the Periodic Table

Mass Number Atomic Number equals the # of... NUCLEUS ELECTRONS PROTONS NEUTRONS NEGATIVE CHARGE POSITIVE CHARGE NEUTRAL CHARGE ATOM.

Ions An atom that carries an electrical charge is called an ion If the atom loses electrons, the atom becomes positively charged (because the number of.

Yippie for Friday!  Find a partner and go sit by them – only groups of 2!!  Stay in the desks, but move them around if needed  Pick up a clicker and.

Determining the NUMBER of Protons Electrons and Neutrons in Atoms, Ions, and Isotopes.

Isotopes and Ions.

More about isotopes Atomic mass vs average atomic mass or atomic weight.

1. Proton 2. Neutron 3. Electron 1. Protons 2. Neutrons 3. Electrons.

Chapter 4 Section 4.  There are about 118 known types of atoms.  Each element has it’s own type of atom.  All atoms of an element have to have one.

Ch. 3 - Atomic Structure II. Masses of Atoms (p.75-80)  Mass Number  Isotopes  Relative Atomic Mass  Average Atomic Mass.

…AND THE AVERAGE ATOMIC MASS Isotopes. PG 88 GENERAL- ATOMS OF THE SAME ELEMENT BUT HAVE DIFFERENT AMOUNTS OF NEUTRONS IN THE NUCLEUS PAGE 54 PRE AP ATOMS.

Do Now: If a student’s grade is weighted per the table below, what would their grade be? WeightAverage Tests50%80 Classwork30%95 Homework20%85.

Section 4.3 How atoms differ. Atomic Number Represents three things in a neutral atom: 1. What element it is 2. The number of protons in each atom 3.

Discuss the following with your table What is an element? What is the difference between and element and an atom? What is the difference between a compound.

Average Atomic Mass. Relative Atomic Masses  Masses of atoms (in grams) are very small, so for convenience we use relative masses.  Carbon-12 is our.

Atomic Number & Atomic Mass

Isotopes. The Nucleus  The number of protons in the nucleus of an atom is unique to each type of element  BUT, the nuclei of the same type of element.

LEARNING ABOUT ATOMS BY READING THE PERIODIC TABLE.

Introducing Isotopes. Pre-thinking questions 1. How are atoms of the same element the same? 2. What do the symbols A and Z represent? 3. How is an average.

Isotopic Abundance Pages Thinking question Why are there decimal places for atomic masses on the periodic table if protons and neutrons have amu.

Introduction to Atoms, Ions and Isotopes. What are atoms? The atom is a basic unit of matter that consists of a dense, central nucleus surrounded by a.

3.3 The Atom. Periodic Table of Elements Atomic Number: Number of protons in an atom; usually appears directly above the chemical symbol. Number of protons.

Seventh Grade Science Isotopes (Copy into notes) Isotopes are atoms that have the same number of protons as the original atom, but more or less neutrons.

Essential Question: How do atoms of the same element differ?

1 The Atom Atomic Number and Mass Number Isotopes.

Masses of Atoms.

Chapter 3: Chemical Foundations: Elements, Atoms, and Ions

Isotopes and Ions Seventh Grade Science.

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

ELEMENTS, IONS AND ISOTOPES

Isotopes and Ions Created by: Mrs. Dube.

Atomic Theory Review Game

Isotopes and Ions Created by: Mrs. Dube.

Isotopes and Ions Section 3-3 Continued.

ATOMIC STRUCTURE AND MASS QUIZ REVIEW

Atomic Symbols protons + neutrons = mass # atomic # = protons.

Bell Ringer What element is located at period 4 group 8?

Distinguishing Between Atoms

Unit 3 – Atoms.

How do structures of atoms Differ?

Isotopes - isotope: atoms of the same element that have different numbers of neutrons - Carbon, as found in nature, is a mixture of isotopes, including.

Name That Atom! Use your knowledge of atoms to find the name of each of the following atoms. Use a Periodic Table!

H H H Isotopes element: same or different mass:

H H H Isotopes element: same or different mass:

Unit 6, Lesson 2: Structure of the Atom

Subatomic Heavyweights

Isotopes QUICK NOTES Carbon-14

Title: Atomic Properties

4.2 Periodic Table Squares and Average Atomic Mass

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

Chem Get Atoms WS stamped off if you did not do so last time Today:

Isotopes Atoms with SAME number of PROTONS (atomic number) but DIFFERENT numbers of neutrons (i.e. mass number) 6 protons 6 neutrons 6 protons 7 neutrons.

Atomic Symbols protons + neutrons = mass # atomic # = protons.

1. What are these two atoms of carbon called?

How We Know What We Can’t See Looks Like Day 4 Average Atomic Mass

Atomic Symbols protons + neutrons = mass # atomic # = protons.

Subatomic Heavyweights

Chem Get Atomic Structure Simulation WS stamped off if you did not do so last class. Today: Atomic Structure Practice Finish Unit 2 Corrections by end.

Subatomic Heavyweights

Atomic Math Calculations

Submit bell ringer sheet into the bin.

Atomic Structure Review Foldable

How We Know What We Can’t See Looks Like Day 4 Average Atomic Mass

1. What are these two atoms of carbon called?

Find the average of the following numbers…

Presentation transcript:

Welcome! (10/31 and 11/2) 99 You’ll need your Periodic Table to: On desk: Blue atoms inquiry WS, Atoms WS #1 You’ll need your Periodic Table to: Identify the number of protons, neutrons, and electrons in the symbol to the right: Give the atomic symbol for an ion with:14 protons, 11 neutrons, and 12 electrons 99 Tc

Homework Questions? Keys will be on Moodle, of course!

Scale of the Universe How cool is this?

Some Terms for Your Notes Mass number Atomic number Atomic mass Atom Ion Isotope

Practice! Assume, in the picture below, that protons are blue and neutrons are red. Give the full symbol Atom or ion? Give an example of an isotope of this element

Part 2 of Atomic Inquiry What does weighted average mean? Natural abundance?

Lab 6: (Weighted) Average Atomic Mass Simulations What do those numbers on the periodic table MEAN? Where do they come from? Lab 6: Simulations Time! When done, do the practice problems on page 2

Homework Day 4 Finish Lab 6 if you didn’t finish in class. Atoms WS #2 Suggested reading: pg 110-117 Finish Test 1 corrections at lunch Thursday or Friday! Practice quiz next class!