In $_{88}R{a^{226}}$ nucleus, there are

${\rm{138}}$ neutrons and ${\rm{88}}$ protons

${\rm{138}}$ protons and 88 neutrons

${\rm{226}}$ protons and ${\rm{88}}$ electrons

${\rm{226}}$ neutrons and ${\rm{138}}$ electrons

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NEET UG PHYSICS MCQ: NUCLEI

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_{88}R{a^{226}}

nucleus, there are

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Correct option: B

\mathrm{138}

neutrons and

\mathrm{88}

protons

Option B (138 neutrons and 88 protons) is correct because the number of protons is the atomic number (88), and the number of neutrons is the mass number (226) minus the atomic number (88), which equals 138.

More Questions from NUCLEI

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The ratio of the nuclear radii of elements with mass numbers

\mathrm{216}

and

\mathrm{125}

is In a hypothetical fission reaction

{ }_{92} X^{236} \rightarrow{ }_{56} Y^{141}+{ }_{36} Z^{92}+3 R

The identity of emitted particles

({R})

is: The radius of the nucleus of the atom with A=216 is (take

{R_0}\; = \mathrm{ }1.3fm

) The correct sequence of the increasing wavelength of the given radiation sources is Which of the following nuclear fragments corresponding to nuclear fission between neutron

\left({ }_0^1 \mathrm{n}\right)

and uranium isotope

\left({ }_{92}^{235} \mathrm{U}\right)

is correct: Which of the following has the mass closest in value to that of the positron

1\,\,a.m.u = 931\,\,MeV