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

Slides:

Advertisements

Similar presentations

Atomic Structure Section The Nucleus Nucleus- contains most of the mass of an atom – Protons & Neutrons contains most of an atom’s mass – Electrons-

Advertisements

Atomic Mass & Number Isotopes The Periodic Table.

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

Atomic Structure What are atoms made of? How are atoms put together? What are Elements? Isotopes?

 Determines the element  Number of protons CANNOT change for an element  Common charge notation is +1  Mass (g) = x  Mass (amu)=

Finding Protons, Neutrons, and Electrons from Nuclear Notation Video Example 1.

 Protons are positive!!!  Protons have a +1 charge  Protons have a mass of 1 amu  Neutrons are neutral!!!  Neutrons have a neutral or no charge 

Inside An Atom. Nucleus Every Atom has a core called a nucleus. Every Atom has a core called a nucleus. The Nucleus is largest part of an atom (about.

Center of Attention Finally we shall place the Sun himself at the center of the Universe - Nicolaus Copernicus © 2014, Simplify Science Select LLC.

Atomic Structure Isotopes.

Section 2 Protons, neutrons, and electrons- how atoms differ

The Modern View of Atomic Structure

Matter & The Atom.

Atomic Structure Concepts.

Atomic Structure Subatomic Particles C. Johannesson.

Subatomic Particles Masses of Atoms Mass Number Isotopes Ions

ELEMENTS, IONS AND ISOTOPES

ATOMIC STRUCTURE THE NUCLEUS: 1) THE PROTON:

Isotopes and Ions Do Now – Explain how atoms of different elements differ from one another. Give a specific example.

Atomic Structure Nat

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

Atomic Structure Chemistry, Unit 1.

Atom p. 88 The smallest unit of an element How small are they?

Some atoms for Ions IONS IONS

The Chemistry of Life.

Atomic Particles Particle Charge Mass # Location Electron -1

Calculating PEN (protons, electrons, neutrons) for Atoms and Ions

H H H Isotopes element: same or different mass:

Structure of The Atom Not the Adam.

Do Now & Announcements Take out note packet from yesterday

H H H Isotopes element: same or different mass:

Section 1 Structure of the atom and cells on the periodic table

Foldables: Atoms Terms.

I. Atomic Structure II. Masses of Atoms Mass Number Isotopes Ion

A Model for the Electrical Nature of Matter

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

The Structure of an Atom

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.

Comparing Atoms Key Question:

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

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

Chemistry Unit: Chapter 3

The Structure of an Atom

e- p+ n0 0 amu 1 amu 1 amu Electron proton Neutron

Atomic Structure.

ATOMIC STRUCTURE THE NUCLEUS: 1) THE PROTON:

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

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.

Structure of the Atom Describe the structure and arrangement of atomic particles. Characterize and classify elements based on their atomic structure.

Atomic Structure Protons- positively charged, found in nucleus

Isotopes & Ions.

Atomic Number, Mass Number, Atomic Mass and Isotopes

Warm-Up We have a name for atoms with a charge, what is it?

What is the basic structure of an Atom?

Do Now Write the following definitions: Proton: Neutron: Electron:

Ch. 4 - Atomic Structure II. Masses of Atoms Mass Number Isotopes

Atomic Structure Nucleus Protons Neutrons Electrons.

Isotopes and Ions.

September 9th, 2011 There should be a ‘mystery’ box at the front of your row. Make observations about the box WITHOUT opening it. Write this in your ‘Starter’

Atomic number Atomic mass.

Structure of an Atom What is an ATOM??? Pg

Isotopes and Ions.

Example Example 1: The atom of an element has a mass number of 214 and an atomic number of 82. a) How many protons and neutrons does it have? The number.

Protons, Neutrons and Electrons

neutral equal electrons Atomic Number = Protons Element Symbol

Presentation transcript:

Chem Get Atoms WS stamped off if you did not do so last time Today: Atoms/Isotopes Average Atomic Mass Average Atomic Mass Mini-lab Atoms Quiz Thurs 2/16 (B), Fri 2/17 (A)

What is important about the atomic number? Unique for each element = # protons in nucleus

How do you figure out the number of: Protons in an atom? # protons = the atomic number Electrons in an atom? # electrons = # protons FOR NEUTRAL ATOMS, only! Neutrons in an atom? # neutrons = mass – # protons

What are Isotopes? Isotopes are different forms of the same element that have a different mass Isotopes have the same # protons but different # neutrons

What are Ions? Ions are atoms that have a positive or negative charge In an Ion, the number of protons and electrons are not equal

Standard Nuclear Notation Note: for ions, the charge (+ or -) is indicated in the upper right corner

What is the ONE THING that determines the identity of an atom? # of protons (atomic #)

Practice

24.305 24.984

Average Atomic Mass Complete Candium Lab-turn in Complete Average Atomic Mass problems