C1 0.0 / 5 ? Chemistryroklv;]dfcjhuieodl OLOLOLGCSEAQA Created by: callumsmith69Created on: 04-06-14 15:46 What are the 3 sub atomic particles in an atom? Proton, neutron and electron. 1 of 5 Number of protons = ? Number of electrons. 2 of 5 Which of the 3 subatomic particles decide what element it is? Number of protons. 3 of 5 In the periodic table, the columns of elements mean the elements have similar what? Similar properties. 4 of 5 Group 0 elements are called what? Noble gases. 5 of 5
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