Chemistry Year 10

Chemistry Year 10

1. Atoms and Elements

   • Elements are the basic building blocks of the matter
   • Elements cannot be broken into anything simpler than chemical means
   • Each Element has there own symbol
   • Elements are made up of atoms and all the atoms of an element are all the same
   • The atomic structure of an element detremines it's possition in the perodic table of elements
   • Each atom contains a small positivley charged region called an electron
   • The nucleus is made up of two types of particles
     • Proton - positivley charged
     • Neutron - negativley charged
   • Light negativley charged electrons orbit around the nucleus
   • Each atom of a particular element has the same number of protons
     • The number of protons is known as the atomic number and every element has a diffreient one
   • The mass of an element is called a relative atomic mass