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32 Cards in this Set
- Front
- Back
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JOHN DALTON MODEL |
- PROPOSED THAT AT THE ROOT OF ALL MATTER WERE VERY SMALL PARTICLES CALLED ATOMS. - DEVELOPED THE PARTICLE MODEL. |
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J.J THOMSON |
- DISCOVERED THE ELECTRON IN 1897 - DEVELOPED THE PLUM PUDDING MODEL |
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NEILS BOHR |
- PROPOSED THAT ELECTRONS GO IN FIXED ORBITS CALLED SHELLS - DEVELOPED THE ELECTRON SHELL MODEL |
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EWIN SCHRODINGER |
-PROPOSED THAT ELECTRONS SHOULD BE REGARDED AS HAVING WAVE-LIKE PROPERTIES.
-QUANTUM MECHANICAL MODEL |
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ERNEST RUTHERFORD |
-FIRED ALPHA PARTICELS AT A SHEET OF GOLD FOIL AND MOST PASSED STRAIGHT THROGH AND A FEW BOUNCED BACK - PROPOSED THAT THE ATOM IS MOSTLY EMPTY SPACE WITH A DENSE NUCLEUS AT THE CENRE. |
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FREDERICK SODDY |
-PROPOSED THAT ATOMS OF THE SAME ELEMENT COULD HAVE DIFFERENT MASSES (ISOTOPES) |
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JAMES CHADWICK |
- DISCOVERED THE NEUTRON. |
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LETTERS THAT REPRESENTS SHELLS |
S,P,D,F |
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GROUND STATE CONFIGURATION |
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CATION |
-POSITIVE ION - LOSES ELELECTRONS -GROUP 1 ELEMENTS |
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ANION |
-NEGATIVE ION - GAINS ELECTRONS -GROUP 17 ELEMENTS |
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Transuranium elements |
Elements after uranium Artificially synthesised Radioactive |
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Transuranium elements |
Elements after uranium Artificially synthesised Radioactive |
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The last few elements on the periodic table are... |
EXTREMELY UNSTABLE |
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Transuranium elements |
Elements after uranium Artificially synthesised Radioactive |
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The last few elements on the periodic table are... |
EXTREMELY UNSTABLE |
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Elements of the f block |
Lanthanoids and actinoids |
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Transuranium elements |
Elements after uranium Artificially synthesised Radioactive |
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The last few elements on the periodic table are... |
EXTREMELY UNSTABLE |
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Elements of the f block |
Lanthanoids and actinoids |
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Atomic size |
Increases: down a group Decreases: across a period |
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Transuranium elements |
Elements after uranium Artificially synthesised Radioactive |
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The last few elements on the periodic table are... |
EXTREMELY UNSTABLE |
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Elements of the f block |
Lanthanoids and actinoids |
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Atomic size |
Increases: down a group Decreases: across a period |
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Electronegativity |
Increases:across a period Decreases: down a group |
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Metallic character |
Increases: down a group Decreases: across a period |
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Metallic character |
Increases: down a group Decreases: across a period |
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Oxidising strength |
Increases:across a period Decreases:down a group |
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Metallic character |
Increases: down a group Decreases: across a period |
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Oxidising strength |
Increases:across a period Decreases:down a group |
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Reducing strength |
Increases:down a group Decreases:across a period |
