Home
Class 12
CHEMISTRY
Calculate the number of neutrons in the ...

Calculate the number of neutrons in the remaining atoms after the emission of an alpha particle from `._(92)U^(238)` atom.

Text Solution

Verified by Experts

On account of emission of alpha particle, the atomic is decreased by 4 units and atomic number by 2 units So, Atomic mass of daughter element = 234
Atomic number of daughter element = 90
Number of neutrons = atomic mass - atomic number
= 234 - 90 = 144
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • RADIOACTIVITY AND NUCLEAR TRANSFORMATION

    OP TANDON|Exercise Problem Practices|44 Videos

  • RADIOACTIVITY AND NUCLEAR TRANSFORMATION

    OP TANDON|Exercise OBJ - A|143 Videos

  • RADIOACTIVITY AND NUCLEAR TRANSFORMATION

    OP TANDON|Exercise SECTION - VI|3 Videos

  • ORGANIC COMPOUNDS CONTAINING NITROGEN

    OP TANDON|Exercise Single integer|8 Videos

  • SATURATED ALIPHATIC HYDROCARBONS

    OP TANDON|Exercise SINGLE INTEGER ANSWER TYPE QUESTIONS|7 Videos

Similar Questions

Explore conceptually related problems

Calculate the number of neutrons in the following. ""_92U^235

._(92)U^(238) is radioactive and it emits alpha and beta particles to form ._(82)Pb^(206). Calculate the number of alpha and beta particles emitted in this conversion. An ore of ._(92)U^(238) is found ot contain ._(92)U^(238) and _(82)Pb^(206) in the weight ratio of 1: 0.1. The half- life -period of ._(92)U^(238) is 4.5xx 10^(9) yr. Calculate the age of the ore.

Knowledge Check

  • Emission of a beta particle from an atom

    A
    increases the number of protons in the atom
    B
    increases the number of neutrons in the atom
    C
    decreases the number of protons in the atom
    D
    does not change the number of neutrons and protons in the atoms

  • Emission of a beta particle from an atom

    A
    Increases the number of protons in the atom
    B
    Increases the number of neutrons in the atom
    C
    decreases the number of protons in the atom
    D
    does not change the number of neutrons and protons in the atoms

  • Emission of beta - particle from an atom-

    A
    increases the number of protons in the atom
    B
    increases the number of neutrons in the atom
    C
    decreases the number of proton in the atom
    D
    does not change the number of neutrons and protons in an atom

    • Similar Questions

    Explore conceptually related problems

    The nucleus ._(92)U^(238) is unstable angainst alpha decay with half-life of 4.5 xx 10^(9) years. Estimate the kinetic energy of the emitted alpha -particle. Mass of the ._(92)U^(238) atom = 238.05081 u Mass of the ._(2)He^(4) atom = 4.00260 u Mass of the ._(90)Th^(234) atom = 234.04363 u

    How many neutrons are present in ._(92)U^(238) ?

    Mass number of a nucleus X is A and atomic number is Z. Find mass number and atomic number of the new nucleus (say Y) after the emission of m-alpha particles and n-beta particles.

    The number of protons and neutrons left in ""_(92)U^(238) after emission of an a-particle are

    What will be the total number of electrons , protons and neutrons in the product formed by the loss of one alpha -particle ""_(92)^(238)U ?

    Home
    Profile