chem
Posted: Wed Nov 07, 2007 12:21 pm
write a chemical symbol and english name of an element in period 3 which is a gas at room temperature.
There are two elements which fits the answer!JamiePena wrote:write a chemical symbol and english name of an element in period 3 which is a gas at room temperature.
Chlorine Cl http://www.webqc.org/periodictable-Chlorine-Cl.html
and
Argon Ar http://www.webqc.org/periodictable-Argon-Ar.html