click below
click below
Normal Size Small Size show me how
Electron config.
Chemistry
| Question | Answer |
|---|---|
| Energy Level | Is the discrete amount of energy of an electron when it is in an atom |
| Excited state | The excited state of an atom is one in which the electrons occupy higher energy levels than those available in the ground state |
| Ground state | The ground state of an atom is one in which the electrons occupy the lowest available energy levels |
| Lyman series | The set of lines created when an electron falls from a higher energy level to the n=1 energy level |
| Balmer series | The set of lines created when an electron falls from a higher energy level to the n=2 energy level |
| Paschen series | The set of lines created when an electron falls from a higher energy level to the n=13energy level |
| Photon | A photon is a fixed amount of light energy or other forms of electromagnetic radiation |
| what did de Brogile propose ? | He proposed that electrons may behave as waves as well as particles, similar to light= wave-particle duality |
| What did Schrödinger do? | He came up with mathematical equations to work out the probability of finding an electron in an atom and he gave us the shapes of the four types of orbitals: s ,p, d and f |
| Heisenburg's Uncertainty Principle | States that it is impossible to know both the position and velocity of an electron at the same time as electrons move in wave motion |
| Energy Sublevel | Is a subdivision of an energy sub level. It is a group of orbitals within an atom, all of which have the same energy |
| Atomic Orbital | Is a region in space around the nucleus of an atom where there is a high probability of finding an electron |
| Aufbau Principle | electrons occupy the lowest available energy level |
| Hund's rule of Maximum Multiplicity | when two or more orbitals of equal energy are available, electrons fill them singly before filling them in pairs |
| Pauli exclusion Principle | no more than two electrons can occupy an orbital and this they can only do if they have opposite spin |
| Transition metal | A transition metal is one that forms at least one ion with a partially filled d sublevel |