Download Guided Overview Ch

Guided Overview Ch. 5 (and some 28)
Atomic Structure
Early Models of the atom (pg 107-112)
Democritus (450 BC) Dalton (1800) used Lavoisier, Proust and others to come up with a atomic theory
4 postulates of Dalton's theory
At this point atomic theory was shaped by some famous experiments
J.J. Thomson and his cathode ray tubes
description:
results:
implications:
Robert Millikan and his oil drops
These two helped formulate the "plum pudding" model of the atom
Rutherford and the gold foil experiment
description:
results:
implications:
Modern Atomic Structure (pg 109-121)
-these experiments led to the nuclear atom we have today
- the modern atom:
- fundamental subatomic particles (table 5.1 pg 111)
-Atomic number:
-mass number:
-Symbols
**-Finding the numbers of electrons, protons and neutrons from atomic numbers and masses
-Isotopes
**- Average atomic mass and its calculation
The Modern Periodic Table (pg 123-126)
-Dmitri Mendeleev’s contributions:
-why were his ideas accepted?
-periodic law:
*-period:
*-group:
*-group names and numbers:
Nuclear Chemistry (Chapter 28 841-849, 853-856)
-3 types of radiation, their symbols and properties
*-Using nuclear equations to show each type of radiation
*-half life and half life calculations
-nuclear fission and fusion…descriptions, similarities, differences)