3 years ago

What has 39 neutrons which element

Chemistry

1 answer:

Rasek [7]3 years ago

6 0

No of Neutrons =Mass No-No of protons

Proton=Neutron+1

$\\ \sf\longmapsto x+1=39$

$\\ \sf\longmapsto x=39-1=38$

Hence it has atomic no 38

The element is Stroncium(Sr)

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