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Chemtestchapters 123
| Question | Answer |
|---|---|
| T G M k | 10^12 10^9 10^6 10^3 |
| d c m u n p | 10^-1 10^-2 10^-3 10^-6 10^-9 10^-12 |
| Celsius to Kelvin | K= C + 273.15 |
| Fahrenheit | 9* ___ x (temp in C + 32* F) 5* |
| Density | D= M/V |
| Physical change | Identity doesn't change |
| Chemical change | Original substance is lost |
| Dalton | atom is indivisible |
| JJ Thomson | Discovered electron |
| Rutherford | atoms are mostly made up of air |
| Millikan | Measured charge on electron |
| Rontgen | discovered xrays |
| bequerel | radioactivity |
| Proton | + 1.6762 x 10^-24 |
| Neutron | neutral |
| Electron | - 9.10 x 10^-28 |
| Quantum of energy | E= h v h= 6.63x 10 ^-34 |
| schrodinger | described electron density and atomic orbitals |