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Structure of an Atom

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by

JP Langcauon

on 6 November 2013

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Transcript of Structure of an Atom

Structure of an Atom
1. Sub atomic particles
2. Atomic Number and Mass Number

1.Subatomic particles
are of course smaller than the atoms
Fundamental particles
Sub-Atomic Particles
Atomic Number and Atomic mass
IONS
When an atom is charged either positive or negative.
Detail 4
Objectives:
Calculate the number of electrons, protons and neutrons to determine an element.
Fundamentals
Proton
Neutron
Electrons
Sub-atomic Particles of an atom
Did you know that there are more than 200 sub-atomic particles
So we will just the study the 2 fundamental types
2 most fundamental types of particles are
1. quarks
2. leptons

Quarks
Elementary particles that do NOT participate in holding the nucleus together
Leptons
elementary particles that DO participate in holding the nucleus together.
Atomic Number
also known as proton number
in a neutral atom the number of proton is the same as number of electron.
Atomic Mass
it is the sum of protons and neutrons in a nucleus.
In many cases, atoms of the same element are different too.
Negative
When the element/ atom gets more electron
Positive Charge
When the atom loses an electron
Here's to sum it up.
Full transcript