A gas with a volume of 525 mL at a temperature of -25°C is heated to 175°C. What is the new volume, in milliliters, of the gas if pressure and number of moles
are held constant?

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.