Chemistry

1. state: A atom, molecule, or ion with an electron in a higher than normal energy level than it's ground state
2. a bond formed by the sharing of electrons between atoms
4. A neutral group of atoms joined together by covalent bonds
7. Rule: electrons occupy orbitals of the same energy in a way that makes the number or electrons with the same spin direction as large as possible
9. bond: A force of attention that holds metals together
10. the electrostatic attraction that binds oppositely charged ions together
11. rule: Atoms react by gaining or losing electrons so as to acquire the stable electron structure of noble gas, usually 8 valence electrons
12. state: the lowest possible energy of an atom described by quantum mechanics

1. The ability of an atom to attract electrons when the atom is in a compound
3. principle: The rule that electrons occupy the orbitals of the lowest energy first
5. gas configuration: an electron structure of an atom or ion in which the outer electron shell contains eight electrons
6. exclusion principle: An atomic orbital may describe at most 2 electrons, each with opposite spin direction
8. law: when the elements are arranged in order of increasing atomic number