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THE ATOMIC THEORY
Section 6.2 p. 153
SCIENCE
NAME ________
DATE ________
A/ VOCAB:
1. John Dalton
2. J.J. Thomson
3. Ernest Rutherford
4. James Chadwick
5. Neils Bohr
6. nucleus
7. proton
8. neutron
9. electron
10. shell
11. atomic number
12. atomic mass
13. Bohr Model
14. subatomic particle 15. isotope
16. empty bus seat rule
B/ THE HISTORY OF THE ATOM:
- John Dalton
Five main points of Dalton's Atomic Theory:
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Elements are made of tiny particles called atoms.
All atoms of a given element are identical.
The atoms of a given element are different from those of any other element; the atoms
of different elements can be distinguished from one another by their respective relative
weights.
Atoms of one element can combine with atoms of other elements to form chemical
compounds; a given compound always has the same relative numbers of types of
atoms.
Atoms cannot be created, divided into smaller particles, nor destroyed in the chemical
process; a chemical reaction simply changes the way atoms are grouped together
- J.J. Thomson:
- Ernest Rutherford:
- Neils Bohr:
- James Chadwick:
C/ THE SUBATOMIC PARTICLES:
THE BOHR MODEL
D/ ATOMIC MASS AND ATOMIC NUMBER:
- atomic number:
- atomic mass:
- isotopes
E/ THE BOHR MODEL:
i.e. 1 Fluorine:
2. Sodium
3. Oxygen:
4. Magnesium:
5. Chlorine:
G/ ASSIGNMENT:
- Do sheet: “ The Atom”