Download Dalton`s Atomic Theory PPT

Chapter 4 Atomic
Structure
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(p+)
(no )
(e-)
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(Not the same as atomic mass).
“Carbon twelve”
“Carbon fourteen”
Mass Number = p+ + no
You might ask why this
is crooked…
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Mass Number = p+ + no
Mass Number = p + n
+
o
Some things just are.
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F
If this is still bothering
you…
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Summary
• Dalton is credited with our modern view of
the atom.
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14
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F
Si
Ti
Mn
Mass Number = p+ + no
Get over it.
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Summary
Summary
• Dalton is credited with our modern view of
the atom.
• Atoms are made of electrons, protons and
neutrons. p+ and no are in the nucleus.
• Dalton is credited with our modern view of
the atom.
• Atoms are made of electrons, protons and
neutrons. p+ and no are in the nucleus.
• Isotopes are atoms of the same element
which have different numbers of no.
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Summary
• Dalton is credited with our modern view of the
atom.
• Atoms are made of electrons, protons and
neutrons. p+ and no are in the nucleus.
• Isotopes are atoms of the same element which
have different numbers of no.
• Mass number of an isotope is the sum of the p+
and no.
• Atomic mass is something different, we’ll get
to that later. It is not a synonym.
Cinnamon?
Mmm….
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