Atomic structure 2.0 / 5 based on 1 rating ? ScienceAtomsGCSEOCR Created by: CrayolaCreationCreated on: 04-03-13 13:27 What does it mean when there is an equal number of electrons and protons? Neutral 1 of 11 Who discovered the electron showing that atoms contain smaller pieces? JJ Thomson 2 of 11 What is the electrons orbited by? Electrons 3 of 11 Do electrons have a positive or negative charge? Negative 4 of 11 Do protons have a positive or negative charge? Positive 5 of 11 Elements in the same period are arranged ....? Horizontally 6 of 11 Elements in the same group are arranged ...? Vertically 7 of 11 What is equal to the number of protons? Neutrons 8 of 11 What do you call the bigger number that is made up of the number of protons and electrons? Mass 9 of 11 The bottom number is the number of? Protons 10 of 11 Elements with the same atomic number but different mass numbers are called ..... Isotropes 11 of 11
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