chem el1 0.0 / 5 ? ChemistryEL1A2/A-levelOCR Created by: __itsmeCreated on: 29-09-18 14:31 what is the definision of an isotope isotopes are atoms of the same element with the same number of prtons but different number of neutrons 1 of 7 what is the formula for relative atomic mass (relative isotopic mass x relative abundance)/100 2 of 7 whatis the general structure of electron orbitals 1s2,2s2,2p6,3s2,3p6,4s2,3d4 3 of 7 are there any eceptions to the previous rules? 1.cr 1s2,2s2,2p6,3s2,3p6,4s1,3d5 2.cu 1s2,2s2,2p6,3s2,3p6,4s2,3d9 4 of 7 what is the definsion of the first ionisation energy? the energy required to remove one electron from each atom in a mole of gaseous atoms 5 of 7 what is the definision of periodicity ? patterns in properties across a row which is repeated in each row 6 of 7 what is electronegativity? power of an atom to attract the two electrons in a covelent bond 7 of 7
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