Metals tend to... electrons
Nonmetals tend to... electrons
The force that holds atoms of elements and ions together to become STABLE, new substance called a compound
This determindes if the atom will form chemical bonds or not
# of valence electrons
Electron dot diagram
Model of an atomic which each dot represents a valence electron
Chemical symbol in center represents
The nucleus, protons, nuetrons, other electrons
The process by which neutral molecules gain or release electron to become an ion
Atom that has a net positive or negative electric charge. (a charged particle)
(negative ion). Achieve by GAINING electrons
More electrons than protons
(positive ion). Achieve by LOSING electrons
More protons than electrons
Number of electrons an atom gains, looses, or shares to form a chemical bond
The force that HOLDS cations and anions together (must have a transfer)
Ionic bond forms when...
Electrons are TRANSFERED from one Aton to another
The amount of energy used to REMOVE an electron from an atom
Easy removal of electrons to another
Ionization energy ... From left to right
# of valence electrons increases as...
The ionization energy increases
How strong atoms of an atom attract electrons
Electrons affinity ... From left to right
Metals loose electrons making them...
Nonmetals gain electrons making them...
Rule of oxidation numbers
Sum of all the oxidation numbers of all atoms in a molecule must equal 0, indincating that the molecule is nuetral
Flip the ... To get the final compound.
A notation that shows what elements a compound contains and the ratio of the atoms/ ions of these elements
Li + F
Ca + F
Chemical bond in which two atoms SHARE a pair of valence electrons
Neutral group of atoms that are joined together by one or more covalent bonds
Nonmetal element that covalently bonds in pairs