The proton numbers and nucleon numbers of four nuclides are shown:

^{206}_{82}\text{Pb} \qquad ^{209}_{83}\text{Bi} \qquad ^{211}_{84}\text{Po} \qquad ^{215}_{85}\text{At}

Which statement is correct?

Lead ( $Pb\text{Pb}$ ) contains one more neutron than bismuth ( $Bi\text{Bi}$ ).

Bismuth ( $Bi\text{Bi}$ ) contains one more proton than lead ( $Pb\text{Pb}$ ).

Polonium ( $Po\text{Po}$ ) contains one more neutron than astatine ( $At\text{At}$ ).

Astatine ( $At\text{At}$ ) contains one more proton than lead ( $Pb\text{Pb}$ ).

The proton numbers and nucleon numbers of four nuclides are shown:

^{206}_{82}\text{Pb} \qquad ^{209}_{83}\text{Bi} \qquad ^{211}_{84}\text{Po} \qquad ^{215}_{85}\text{At}

Which statement is correct?

Lead ( $Pb\text{Pb}$ ) contains one more neutron than bismuth ( $Bi\text{Bi}$ ).

Bismuth ( $Bi\text{Bi}$ ) contains one more proton than lead ( $Pb\text{Pb}$ ).

Polonium ( $Po\text{Po}$ ) contains one more neutron than astatine ( $At\text{At}$ ).

Astatine ( $At\text{At}$ ) contains one more proton than lead ( $Pb\text{Pb}$ ).

5.1.2a Composition of the nucleus and isotopes

5.1.2a Composition of the nucleus and isotopes Questions