Talk:General Chemistry/Properties of Matter/Basic Properties of Matter

If matter is 'composed of atoms,' does that mean that atoms are not themselves matter? What about the particles of which atoms themselves are composed? Don't they also have mass and volume? I wonder whether it might be misguided to try to say what matter is "composed of," since it presupposes that matter has an ultimate composition, i.e., some basic unit which is not itself composed of another material unit. Ineffabilliken (talk) 18:24, 6 May 2010 (UTC)

Mass IS NOT the measurement of how much matter exists in a certain object. Any object contains particles of different mass. So, the mass and the amount of te matter in ay object CANNOT be compared.

In the S.I. tere are two FUNDAMENTAL quantities to measure the mass of an obect and the amount of matter (the sum of the amount of all the substances contained in the object). FUNDAMENTAL means that the two quantities are fundamentally different; and they cannot be compared.