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Chem U4 bonding

periodic table ion bondings

Alkali metals are in what column C1, very reactive
alkaline earth metals C2, kinda reactive
Transition metals C3-13
Halogens C17, not really reactive
Noble gases C18, never reactive; has a full configuration
compound when one or more atoms are bonded together
molecule a compound with covalent bonds
formula unit a compound that has ionic bonds
ionic bonds - and + charges attract; transfer of electrons because unhappy elements lose/gain electrons
what type of metal is needed to make an ionic bond metal+nonmental
covalent bonds has no charge because of same charges; sharing electrons
what type of metal is needed to make a covalent bond nonmental+nonmetal
diatomic molecules elements that always exist as a molecule
define chemical formula notation using symbols and #s to represent the composition of a substance
ex of chemical formula H20
molecular formula shows the # and kinds of atoms actually present
ex of molecular formula c5=c*c*c*c*c
empirical formula gives the simplest between atoms (reduced form molecular formula)
ex of empirical formula C10H22>>C5H11
coefficeints used to show the prescence of multiple compounds
ex of coefficient 2H2O2 (is not H4O4)
"magic 7" H2, N2, O2, F2, Cl2, Br2, I2 are the only elements that have a bond with itself (diatomic)
ammonium NH4(+)
carbonate Co3(2-)
chlorate ClO3(-)
chromate CrO4(-2)
hydrogen carbonate (bi) HCO3(-)
hydroxide OH(-)
nitrate NO3(-)
Permanganate MnO4(-)
phosphate PO4(3-)
sulfate SO4(2-)
silver Ag1+
zinc Zn2+
Created by: allyson.lee