chemistry 0.0 / 5 ? ScienceChemical reactionsGCSEAQA Created by: revisingCreated on: 18-03-22 19:38 an ion is an atom with an electric charge due to the loss or gain of an electron 1 of 7 what is a mass number the total number of protons and neutrons in a nucleus 2 of 7 Elements are placed in order of what in the modern periodic table? atomic number 3 of 7 what are the group 1 lithium, sodium, potassium, rubidium, caesium, francium 4 of 7 lithium reacts with water fizzes and slowly disappears 5 of 7 potassium reacts with water burns with a lilac flame 6 of 7 the group 1 element increases or decreases down the group increasing down the group 7 of 7
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