Particles in atoms 0.0 / 5 ? ChemistryAtomsGCSEAQA Created by: LiamliampriceCreated on: 24-05-16 18:55 The atomic number tells us the number of -?- in the nucleus? Protons 1 of 5 The mass number tells us the number of -?- plus -?- in the nucleus Protons plus neutrons 2 of 5 Which number (mass or atomic) is always the same for a mass of an element? Atomic number 3 of 5 Why do most atoms have a neutral charge? As the number of (positive) protons equal the amount of (negative) electrons 4 of 5 What is the Atomic and mass number of hydrogen? Use a periodic table to help you 1- atomic number, 1- mass number 5 of 5
Comments
No comments have yet been made