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Technoratihelp cant figure it out
Submitted by Anonymous on 6 September 2005 - 12:44pm.
can someone help me i need to know whether any of the following are atoms, ions or molecules
a) Na
b) F2 (little 2)
c) O2 (2 is little and has a minus sign next to it)
d) O
e) SO24 ( the 2 is on the top and the 4 on the bottom and next to the 2 is a minus sign)
f) IO3 (little 3 and it has a minus dash above it)
Re: help cant figure it out
Na : this is an atom (no charge, not bonded to anything else)
F2 : this is a molecule (two atoms joined together)
O^2- : ion (because it has a charge)
O : Atom
SO4^2- : this is an ion (because it is a charged species)
IO3^- : this also is an ion
Actually Allan means that SO4-2 is a sulfate ion, but he gets positions of numbers mixed up even though his thinking is never mixed up.
¬_¬
Easy way to do this
Just remember that
oxygen
hydrogen
nitrogen
fluorine
chlorine
bromine
iodine
phosphorus
and sulfate need more than one atom to make up a molecule
O2, H2, N2, F2, Cl2, Br2, I2, P4, and S8
The ions are a dead giveaway because they have a charge.