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16-09-2021
Chemistry

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What has 39 neutrons which element

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Аноним Аноним

16-09-2021

No of Neutrons =Mass No-No of protons

Proton=Neutron+1

[tex]\\ \sf\longmapsto x+1=39[/tex]

[tex]\\ \sf\longmapsto x=39-1=38[/tex]

Hence it has atomic no 38

The element is Stroncium(Sr)

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