andresjohnston andresjohnston

19-08-2020
Chemistry

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What is the atomic mass for Helium (He)? Question 5 options: 8 2 3 4

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JackieU2 JackieU2

19-08-2020

It is 2 because if you have a chart that shown all the elements at the top left corner it would show a number and that is the atomic number

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