Question

radium-223 , mass no. .... , no. of proton ...., no.of neutrons...., no. of electrons....?​

Answer 1

Answer:

mass no = 226

no. of electron = 88

no. of proton =88

no. of neutron = 138

Electron configuration:

[Rn]7s2

(1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2)

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