Flashcards
Atomic Structure and the periodic table (C1)
Flashcards do conjunto (11)
- 1AtomsElectrons=-1
Neutrons=0
Protons=+1 - 2IsotopesDifferent forms of the same elements which have the same number of protons but not neutrons
- 3ElementsConsist of atoms with the same atomic number
- 4Compounds-Atoms combine with other atoms to form compounds
-Substances formed from two or more elements - 5FILTRATIONSeparates insoluble solids from liquids
EVAPORATION and CRYSTALLISATION separate soluble solutions from solids and to separate rock salt - 6History of the atomJohn Dalton= solid spheres
JJ Thompson=wernot solid spheres contained electrons
'Plum Pudding Model'
-Ball of positive charge with electrons in it - 7Plum Pudding Model was wrongErnst Rutherford proved the model was wrong
He fired POSITIVELY CHARGED ALPHA PARTICLES at a thin sheet of gold.
Ernst Rutherford discovered protons - 8Neils BohrNeils Bohr created a nuclear model stating electrons were contained in shells and orbit the nucleus
- 9James ChadwickJames Chadwick discovered protons
- 10Dmitri MendeleevMendeleev took 50 elements and ordered them in atomic mass in the periodic table
- 11Metals and non-metalsMetals=Metallic Bonding
Non-Metals= More Brittle
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- GCSE Biology, Chemistry, Physics (Chemistry) FlashCards sobre Atomic Structure and the periodic table (C1), criado por Kelis Garner em 01-06-2019.
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- Kelis Garner
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