What is CRISSCROSS?

CrissCross method is a way to determine the chemical pattern of compounds by valence of atoms. Atoms have a central core of protons and neutrons, with electron layers circling the core in layers called shells. The farthest shell may contain too many or few electrons that are described on the plus or minus valence number. The compounds form the replacement of these electrons in responses called an ion bond, where electrons are shared between two or more atoms.

When an atom with two other electrons combines with another containing one less electrons, it takes to create a compound two of the other atom. The silicon contains two other electrons in its outer shell, while the oxygen contains one electron short shell. The ion formula for two atoms would be ^{& plus; 2 and about −1 that shows an ion valence for each of them.}

Using the CRISSCROSS method, the resulting compound can be written by transferring each atom the second and writing as an index. PierThe kula resulting from a combination of silicon and oxygen is a silicon oxide or SIO _{2 . The valence of the silicon atom is exceeded to oxygen and is transmitted or crossed to silicon. Overcoming Valir between two atoms in the description of the molecule led to the method of Crisscross term.}

The reactions of both atoms eliminate any electron charge, as the atoms combine in the proportions needed to use all excess electrons. With a balanced number of electrons, valence is considered zero and no plus or minus sign is used in the molecular formula. Ion molecules are very stable because electrons are shared among atoms, creating a very strong chemical bond.

The

process called reduction is used to create the right molecular name when the valence is multiple smaller numbers. Barium and oxygen can be combined to form a Barria oxide, each of which contains Valencaand two. Using the CrissCross method, Valence 2 would be exceeded to the atomic name of the second atom, which would result in a molecule called BA _{2 2 . The subscription can be divided 2, so the correct molecule is Bao and Valence has been reduced to the minimum required.}

The

Crisscross method will also work when molecules are made of more complex groups such as zinc acetate. Zinc (zn) with a & plus; 2 Valence, can chemically combine with a molecule acetate (C _{2 h 3 o 2 ) with −1 valence. The method switches two valence to show that one zinc atom combines with two acetate molecules to form a ZN (C 2 H 3 ) 2 . As long as the molecule has known valence, the Crisscross method can be used to determine the correct molecular structure of any compound.}