Ions and Compounds Flashcards
compounds
2 or more elements combined in definite proportions
ionic compounds
with a metal and non-metal
1:1 ratio
writing names for ionic compounds
name metal
name non-metal with “ide” ending
polyatomic ions
a group of elements that tend to stay together and carry and overall ionic charge
polyatomic compounds
an ionic compound where the cation, anion or both ions are polyatomic ions
molecular compounds
consists of 2 NON METALS sharing electrons
how to name a molecular compound
usually non metal with the lower group # is written first
use prefixes to indicate how many elements there are
change ending of second non metal to “ide”
what exceptions are there when it comes to naming molecular compounds?
when there is a halogen and oxygen oxygen is always 2nd
prefix for 1
mono
prefix for 2
di
prefix for 3
tri
prefix for 4
tetra
prefix for 5
penta
H2O2
hydrogen peroxide
O3
ozone