atomic structure

• Charge of a proton

  +1
• charge of electron


  -1
• Charge of Nutron


  0
• what are isotopes


  Atoms with the same number of protons but different numbers of neutrons 
• atomic number=11, mass number=23, number of protons=11, number of electrons=11, neutrons=23-11=12

  
• how to work out the number of nuetrons

  mass number-atomic number
• what is the empty space called in an atom
?


  an atom contains a large empty space called nuclear space.
• what is nuclear fission


  Nuclear fission is a reaction in which the nucleus of an atom splits into two or more smaller nuclei
• what is nuclear fusion

  Nuclear fusion is where two small, light nuclei collide at high speed and join together to make one heavy nucleus.
• what is the purpose of nuclear fusion

  Nuclear Fusion reactions power the Sun and other stars.
• nuclear fission uses

  Nuclear fission produces energy for nuclear power and drives the explosion of nuclear weapons. 
• how do power plants use nuclear fusion?

  Nuclear power reactors use the energy that is produced during fission to boil water and produce pressurized steam.
• what element has 3 naturally occurring isotopes?

  hydrogen has three naturally occurring isotopes--1H(the real hydrogen), 2H, and 3H. an isotope is the same element with a different amount of protons
• What does an alpha particle consist of?

  two protons and two neutrons tightly bound together / helium nucleus