Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
10 Cards in this Set
- Front
- Back
|
History of the atom |
John Dalton - Solid Spheres J.J.Thompson - Plum Pudding Rutherford - Gold Foil Bhor - Current Model |
|
|
Particles |
Protons - Mass(1) Charge(+1) Neutron - Mass(1) Charge(0) Electron - Mass(0.0005) Charge(-1) |
|
|
Ions |
Positive - Lost Electrons Negative - Gained Electrons |
|
|
Isotopes |
Isotopes have extra neutrons. |
|
|
Periodic Table |
Groups - Vertical - Number of outer electrons Periods - Horizontal - Number of total shells |
|
|
Shells (Energy Levels) |
1st shell - 2 electrons 2nd shell - 8 electrons 3rd shell - 8 electrons 4th shell - 18 electrons |
|
|
Ionic Bonding |
Group One - lost one electron Group Two - lost two electrons Group Six - Gained two electrons Group Seven - Gained one electron |
|
|
Ionic Bonding (2) |
Group one and two - reactivity increases as you go down the periodic table. Group six and seven - reactivity decreases as you go down the periodic table. |
|
|
Halogens |
Group 0/8 - Halogens are inert. |
|
|
Ionic Compounds |
High melting/boiling point. Not Conductors. Easily Soluable. Carries current when saturated. |
