AS Chemistry - Atomic Structure 0.0 / 5 ? ChemistryAtomic StructureASOCR Created by: ambermeganjonesCreated on: 21-04-16 23:12 Define an isotope Atoms of the same element with a different number of neutrons 1 of 10 Define mass number Number of protons + neutrons in the nucleus of an atom 2 of 10 Define atomic number Number of protons in the nucleus of an atom 3 of 10 Define relative atomic mass The weighted mean mass of an atom of an element when compared to 1/12 of the mass of an atom of C-12 4 of 10 Define relative isotopic mass The mass of an atom of an isotope when compared with 1/12 of the mass of an atom of C-12 5 of 10 What is the charge and mass of a proton? Charge = +1 Mass = 1 6 of 10 What is the charge and mass of a neutron? Charge = 0 Mass = 1 7 of 10 What is the charge and mass of an electron? Charge = -1 Mass = 1/1836 8 of 10 Explain why isotopes of elements react in the same way in chemical reactions. isotopes of an element have the same number of outer shell electrons. Only outer shell electrons participate in chemical bonding 9 of 10 How do you work out relative atomic mass? (mass number x percentage abundance) + (mass number x percentage abundance) etc / 100 10 of 10
Comments
No comments have yet been made