3.3 Interactions of Matter. Bonding. Chemical Compounds. Add to your notes!. Formed by the interactions of individual atoms. Electrons found in the outermost energy level dictate what kind of bonding will occur . A chemical compound is a group of atoms held together by chemical bonds.
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Add to your notes!
If there are no numbers, there is only one atom of each element present.
Ex: LiBr Li: 1 Br: 1
If there is a number and only one element, there are that many atoms of that element.
Ex: O2O: 2
If there are multiple elements and a number, there are that many atoms of the element the number is beside. There are only 1 of each of the other elements.
Ex: CaSO4Ca: 1 S: 1 O: 4
If there are parenthesis, the number corresponds to all elements inside the parenthesis.
Ex: Si(OH)4Si:1 O: 4 H: 4
If there are parenthesis with a number inside of the parenthesis, distribute (by multiplying) the number outside the parenthesis to the elements inside the parenthesis.
Ex: Ca(NO3)2 Ca: 1 N: 2 O: 6