67.0 Should be th3 answer
Bromine. both Bromine and Mercury are both a liquid at STP. :)
Density= mass/volume
step one :
convert m3 to ml
1m^3 =1000000ml
0.250m^3 x1000000=250000ml
step two: convert mg to g
1mg=0.001g, therefore 4.25 x108mg=0.459g
density is therefore= 0.459g/250000=1.836 x10^-6g/ml
The F atom . Oxygen has a -2 charge and fluorine has a +1 charge
