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Atomic Structure - General Chemistry - Lecture Slides, Slides of Chemistry

Fundamental concepts of chemistry including atomic structure, history of the atom, development of the periodic table, nuclear chemistry, chemical nomenclature and formula, types of reactions, stoichiometry, gas laws, liquids and solids, thermodynamics, chemical equilibrium, acids and bases. This lecture includes: Atomic Structure, Nucleus, Electron, Shell or Orbit, Atom Hydrogen, Atom Helium, Proton Electron, Neutron, Helium Has Two Electrons, Two Protons and Two Neutrons, Mass Number, Atom Lith

Typology: Slides

2012/2013

Uploaded on 12/31/2013

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Atomic structure

Atomic Structure

The Atom

Nucleus

Electron

Shell or Orbit

The Atom Hydrogen

Proton

Electron

Hydrogen has one proton, one electron and NO neutrons

Mass and atomic number Particle^

Relative Mass

Relative Charge

Proton

Neutron

Electron

MASS NUMBER = number ofprotons + number of neutrons

SYMBOL

PROTON NUMBER = number of

protons (obviously)

The Atom Helium

Electron

Proton NeutronHelium has two electrons, two protons and two neutrons

The Atom Beryllium

Protons Neutrons

Electrons

Beryllium has four electrons, four protons and five neutrons.

The Atom Boron

Protons Neutrons

Electrons

Boron has five electrons, five protons and six neutrons.

The Atom Nitrogen

Protons Neutrons

Electrons

Nitrogen has seven electrons, seven protons and seven neutrons.

The Atom Oxygen

Protons Neutrons

Electrons

Oxygen has eight electrons, eight protons and eight neutrons.

The Atom Neon

Protons Neutrons

Electrons

Neon has ten electrons, ten protons and ten neutrons.

The Atom Sodium

Protons Neutrons

Electrons

Sodium has eleven electrons, eleven protons and twelve neutrons.

Mendeleev

Periodic table

The periodic table arranges all the elementsin groups according to their properties.

Horizontal rows are called PERIODS

Verticalcolumns arecalled GROUPS

H^

He

Li^ Be

B^ C

N^

O^ F

Ne

MNa g

Al^ Si

P^

S^ Cl

Ar

K^ Ca

Fe^

CNi u Zn^

Br^ Kr

Ag^

I^ Xe

APt u H g

The Periodic Table

Fact 1:

Elements in the same group have the same number of electrons in the outer shell (this

correspond to their group number) E.g. all group 1 metalshave __ electron intheir outer shell

These elementshave __ electronsin their outer shell

These elements have__ electrons in theirouter shells