Nature of Matter Summary


Ask a Question, Get an Answer!
Hundreds of tutors are online and ready to help you right now!
  • Matter is anything that occupies space and has mass.
  • Element is a pure substance, which can neither be decomposed nor built from simpler substances by any physical or chemical means. It contains only one kind of atom.
  • Broadly speaking, elements can be divided into metals, non-metals and metalloids.
  • A compound can be decomposed into two or more simpler substances. In its formation, energy is usually evolved or absorbed.
  • The components of a mixture can be separated by simple mechanical means.
  • The smallest particle of an element or a compound, which can exist in the free state, is called a molecule.
  • According to Dalton's atomic theory, all matter is made up very small particles called atoms, which cannot be further divided.
  • The law of constant proportions states that all pure specimens of a compound always contain the same elements combined together in the same proportion by weight.
  • A mole contains 6.023 x 1023 particles. This is called Avagadro's number.



Ask a Question? Get an Answer!

connect to a tutor


Related Searches

nature of matter summary

;,  

physical nature of matter

,  

physical properties of colloids

,  

avagadro's law

,  

properties of colloids substances

,  

atomicity of a molecule of an element

,  

avagadro law

...more