Chemistry-Atomic structure 0.0 / 5 ? ChemistryAtomsGCSEWJEC Created by: Sophie ConwayCreated on: 08-02-14 12:16 what is the relative mass of protons and neutrons? 1. they are very small. 1 of 10 what is the relative mass of an electron? it is negligible because it is so small 2 of 10 what are the charges of the proton neutron and electron in the central nucleus? proton,+(+1) charge electron,-(-1)charge neutrons,no charge (0) 3 of 10 what charge does the overall atom have? no electrical charge, because the number of electrons in the shell is equal to the number of protons in the nucleus. 4 of 10 what is the name of the number of protons in an atom? proton number or atomic number 5 of 10 what is the mass number? the number of nucleons (protons+neutrons) 6 of 10 what is the number of neutrons mass number - proton number 7 of 10 what are isotopes? different forms of the same element. same number of proton and different number of neutrons 8 of 10 what is a neutral atom? has the same number of protons and electrons. they have a zero charge. 9 of 10 what do the number of electrons in the outer shell determine? the way the atom behaves in chemical reactions 10 of 10
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