EMOTRASH22 EMOTRASH22

16-02-2017
Chemistry

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if an elements atomic mass is 70 and it has 39 neutrons how many protons does it have?

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16-02-2017

It has 70 protons. The atomic mass is the same as the amount of protons

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colleen8 colleen8

16-02-2017

31- mass is made up of protonsand neutrons only because electrons have very little mass

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