chemestry

chemestry

1. ATOM

   • is the smallest unit that matter has

2. electron

   • particle arround the nucleus

3. neutron

   • particle of the nucleus of the atom without charge

4. proton

   • particle in the nucleus of the atom with positive charge

5. atomic number

   • number of protones an element has

6. atomic mass

   • amount of matter which forms a body

7. group

   • are ordered confirm more things have in common

8. period and blog

   • are arranged in horizontal columnar in the periodic table

9. metals

   • metal
     • they are good conductors of heat and electricity
   • metalloids
     • intermediate behaivor between metals and non metals
   • non metals
     • they are not shiny and bad conductors of energy