Atomic Structure

Jun 04, 2012

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What is an atom?. Atom: the smallest unit of matter that retains the identity of the substanceFirst proposed by Democratus . Atomic Structure. Atoms are composed of 2 regions:Nucleus: the center of the atom that contains the mass of the atomElectron cloud: region that surrounds the nucleus t

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Atomic Structure

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“ Atomic Structure”

“ Atomic Structure”. Defining the Atom. OBJECTIVES: Describe Democritus’s ideas about atoms. Defining the Atom. OBJECTIVES: Explain Dalton’s atomic theory. Defining the Atom. OBJECTIVES: Identify what instrument is used to observe individual atoms. Defining the Atom.

1.29k views • 46 slides

Atomic Structure

Atomic Structure. Composition of the Atom. There are three subatomic particles which make up the atom: Protons Electrons Neutrons. Protons. The proton is a positively charged particle which is found in the nucleus of the atom.

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Atomic Structure

Atomic Structure. Image courtesy of www.lab-initio.com. B.C. 400 B.C. Demokritos and Leucippos use the term "atomos” . Chemistry Timeline #1.  2000 years of Alchemy . 1500's Georg Bauer: systematic metallurgy Paracelsus: medicinal application of minerals. 1600's

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Atomic structure

Atomic structure. Outcomes:. You must be able to describe what an atom is made of and how atoms of an element are represented You should be able to describe the properties of all subatomic particles You could be able to explain what an isotope is. Everything is made up of atoms….

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Atomic Structure

Atomic Structure. Spectra of Science Miss Amole. By PresenterMedia.com. What is an atom?. Simplest unit in an element Determines the properties of that element “atom” is derived from a Greek word meaning “unable to be divided”

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Atomic Structure

Atomic Structure. What are Atoms? Atoms are tiny units that determine the properties of all matter. Atoms are the building blocks of molecules. Atomic  Models. There have been five major atomic models, including the one in use today.

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Atomic Structure

Atomic Structure. ATOM. Smallest unit of matter An element is made up of the same atom ex: Gold (element on P.T) is made up of gold atoms. Parts of an Atom. Atoms are made up of: Protons (p + ): Positive charged Electrons (e - ) : negatively charged

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Atomic Structure

Atomic Structure. What do atoms look like??? Draw what you think an atom would look like if it were as big as a baseball. How big do you think an atom is?? How much bigger is a baseball than an atom? Atomic Structure Movie. Atomic Structure Tool.

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Atomic Structure

Atomic Structure. Atomic Structure. Atoms are made out of: Protons Neutrons & Electrons These are known as subatomic particles. Atomic Structure. Subatomic particles have charge Protons are positive (+) Neutrons are neutral (0) Electrons are negative (-). Atomic Structure.

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Atomic Structure

Atomic Structure. Unit 2—Part III. What is an atom?. Atom: the smallest unit of matter that retains the identity of the substance First proposed by Democratus. Atomic Structure. Atoms are composed of 2 regions: Nucleus: the center of the atom that contains the mass of the atom

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Atomic Structure

Atomic Structure. A level At The Sixth Form College Colchester. Early Ideas of Atoms. Two fifth-century BC Greeks, Said look at matter on smaller and smaller scales ultimately you would see individual atoms - objects that could not be divided further (the definition of atom).

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ATOMIC STRUCTURE

ATOMIC STRUCTURE. ATOM. PERKEMBANGAN TEORI ATOM. PARTIKEL PENYUSUN ATOM. NOTASI ATOM. STRUKTUR ATOM. PERKEMBANGAN TEORI ATOM. DEMOKRITUS-LEUKIPPOS Materi jika dibagi terus, maka akan sampai pada bagian tertentu yang tidak dapat dibagi lagi. KLASIK. DALTON

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ATOMIC STRUCTURE

Ch. 3. ATOMIC STRUCTURE. Sizing up the Atom. Elements are able to be subdivided into smaller and smaller particles – these are the atoms , and they still have properties of that element If you could line up 100,000,000 copper atoms in a single file, they would be approximately 1 cm long

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Atomic Structure

The historical evidence for atoms was based largely on indirect measurements and inferences far removed from direct experience.

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Atomic Structure

Atomic Structure. Discovery and Properties of Electrons. Humphrey Davy (early 1800’s) - passed electricity through compounds compounds decomposed into elements compounds are held together by electrical forces

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Atomic Structure

Atomic Structure. Bell work 4/5/12. What are the 3 subatomic particles of an atom? What is the electric charge of each one?. What are the 3 major parts of an atom and the charge?. Proton - Positive Neutron – Neutral (no charge) Electron - Negative. Atoms.

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Atomic Structure

Atomic Structure. Unit II—Part 3. What is an atom?. Atom: the smallest unit of matter that retains the identity of the substance First proposed by Democritus around 420 B.C. “Atomos” in Greek means indivisible. Atomic Structure. Atoms are composed of 2 regions:

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Atomic Structure

Atomic Structure. SMA MAARIF NU PANDAAN RINTISAN SEKOLAH KATEGORI MANDIRI 2010. Moh. Suwandi, S.Pt.,M.Pd. Development of Atomic Models. 1. Subatomic Particles. 2. Atomic Number and Mass Number of Atoms. 3. 3. 3. Exercise. 4. Atomic Structure. Development of Atomic Models.

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ATOMIC STRUCTURE

ATOMIC STRUCTURE. S.MORRIS 2006. HISTORY OF THE ATOM. Democritus develops the idea of atoms. 460 BC. he pounded up materials in his pestle and mortar until he had reduced them to smaller and smaller particles which he called. ATOMA ( greek for indivisible ). HISTORY OF THE ATOM.

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ATOMIC STRUCTURE

ATOMIC STRUCTURE. ATOMIC STRUCTURE P + = PROTON N o = NEUTRON E --- = ELECTRON DIFFERENT WAYS TO WRITE ELEMENTS & THEIR SYMBOLS Phosphorus—31 AND 31 15 P ***NEUTRONS = mass # -- atomic #

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Atomic Structure

Atomic Structure. Elements. All elements are composed of only one type of atom. In these atoms are three subatomic particles: Protons Neutrons Electrons. Elements. -Protons have a positive charge (+) -Neutrons have no charge (neutral) -Electrons Have a negative charge (-).

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Atomic Structure

Atomic Structure. Atomic Structure. Protons and neutrons are found in the nucleus or centre of an atom and make up most of the weight of an atom they have a similar weight to each other. Electrons Spin. Electrons are found spinning very rapidly around the nucleus and have virtually no weight.

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