Flashcards: Chemistry definition - Leaving Cert

Fixed energy value an electron in an atom may have

Electron occupy the lowest available energy level

Electrons occupy higher energy level than the ground state

Impossible to measure both velocity and position of an electron

Volume around the nucleus high chance of finding electron

Subdivision of main energy level with one or more orbitals

Substance that can't be split into simpler substances by chemical means

Sum of number of protons and neutron in the nucleus

Atom with same atomic number but different mass number due to neutrons

Average sum of mass of isotope relative to one 12th a carbon 12 atom

In a electromagnetic field charged particles are deflected according to their mass

In an electron configuration electrons always occupy the lowest available energy level

Substances made of different elements combined by chemical means

Charged atom

Attraction between oppositely charges ions with

Metal that forms an ion with a partially filled d sublevel

A group of atoms joined together

Head on overlap of orbitals

Sideways overlap of p orbitals