What is the pressure that must be exerted on 300.0 mL of a gas, which has been collected at STP so that it may be confined to a volume of 190.0 mL?

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.