Atomic structure
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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
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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