Please help 10 points and plz explain Sulfur hexafluoride is a relatively dense gas. What volume would 100 g of sulfur hexafluoride occupy at
room temperature and pressure (RTP), to 3 significant figures? The molar mass of sulfur hexafluoride is
146 g/mol.

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

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a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.