Chemistry C1 1.2 0.0 / 5 ? ChemistryGCSEAQA Created by: Bex RobertsCreated on: 31-05-13 12:29 what does an atom conatin? protons & neutrons 1 of 8 what does every atom have the same number of? protons & electrons 2 of 8 what is the atomic number? the number of protons in the nucleus 3 of 8 what is the mass number? the number of protons plus neutrons 4 of 8 if an atom has 4 protons and 5 neutrons, what is the mass number? 4 + 5 = 9 5 of 8 argons atomic number is 18 and mass number is 40, how many electrons? the number of electrons is the same as the number of protons, so 18 6 of 8 so how many neutrons does argon have? 18(number of prontons) + number of neutrons = 40 therefore it has 22 neutrons (18+22=40) 7 of 8 what is the charge on a proton, a neutron and an electron? proton +1, neutron 0, electron -1 8 of 8
Comments
No comments have yet been made