THE JOINING OF ATOMS TO FORM NEW SUBSTANCES

AN INTERACTION THAT HOLDS 2 ATOMS TOGETHER

ELECTRONS IN THE OUTERMOST SHELL, OR ENERGY LEVEL

EACH SHELL THEREAFTER CAN HOLD A MAXIMUM OF 8 ELECTRONS.

BASED ON SIMILAR PROPERTIES!

OF EACH ELEMENT HAVE THE SAME NUMBER OF VALENCE ELECTRONS!

LIKELY TO FORM BONDS THAN AN ATOM WITH 8 VALENCE ELECTRONS.

ELECTRONS TO ACHIEVE 2 ELECTRONS IN ITS' 1ST SHELL.

SOME TRANSFER ELECTRONS, OTHERS SHARE ELECTRONS.

DETERMINE WHETHER OR NOT THE ATOM WILL FORM BONDS.

NEVER FORM BONDS.

BOND THAT FORMS WHEN ELECTRONS ARE TRANSFERRED

CHARGED PARTICLES THAT FORM WHEN ATOMS GAIN/LOSE ELECTRONS

WHEN ATOMS PULL ELECTRONS AWAY FROM OTHER ATOMS.

HAVE MORE PROTONS THAN ELECTRONS--MAKING THEM POSITIVE.

HAVE MORE ELECTRONS THAN PROTONS--MAKING THEM NEGATIVE.

AND TEND TO LOSE THEIR ELECTRONS TO FORM POSITIVE IONS.

BECAUSE ONLY A FEW ELECTRONS ARE NEEDED TO FILL THEIR SHELLS.

ATOMS WHEN THEY GAIN ELECTRONS.

METAL ATOMS EQUALS THE NUMBER GAINED BY THE NON-METAL ATOM.

A METAL AND A NON-METAL.

A CRYSTAL LATTICE.

FORMS WHEN ATOMS SHARE 1, OR MORE PAIRS OF ELECTRONS

CONSISTS OF 2, OR MORE ATOMS JOINED IN A DEFINITE RATIO

2 NON-METAL ATOMS.

BONDED ATOMS.

COUNTED AS VALENCE ELECTRONS FOR EACH ATOM.

FORMED BY THE ATTRACTION BETWEEN POSITIVELY CHARGED METAL IONS