Home
Class 12
CHEMISTRY
An atom has atomic mass 232 and atomic n...

An atom has atomic mass 232 and atomic number 90. During the course of disintegration, it emits 2 `beta`-particles and few `beta`-particles and few `alpha`-particles. The resultant atom has atomic mass 212 and atomic number 82. How many `alpha`-particles are emitted during this process?

Text Solution

Verified by Experts

Let the reaction is
`._(90)A^(232) rarr ._(82)B^(212) + x_(2)He^(4) + 2 ._(-1)e^(0)` ….(i)
Let `x` be the number of alpha particles emitted equate the atomic mass of the side of Eq. (i)
`232 = 212 + 4 x + 2 xx 0`
`:. X = (232 - 212)/(4) = 5`
Therefore, `5 alpha`-particles are emitted.
Promotional Banner

Topper's Solved these Questions

  • NUCLEAR CHEMISTRY

    CENGAGE CHEMISTRY|Exercise Solved Example|18 Videos

  • NUCLEAR CHEMISTRY

    CENGAGE CHEMISTRY|Exercise Ex6.1 Objective|15 Videos

  • NCERT BASED EXERCISE

    CENGAGE CHEMISTRY|Exercise Nuclear Chemistry (NCERT Exercise)|29 Videos

  • ORGANIC COMPOUNDS WITH FUNCTIONAL GROUP

    CENGAGE CHEMISTRY|Exercise Archives Analytical And Descriptive|24 Videos

Similar Questions

Explore conceptually related problems

An atom has atomic mass 232 atomic number 90. During the course of disintegration, it emits 2 beta particles and few alpha particles. The resultant atom has atomic mass 212 and atomic number 82. How many alpha particles are emitted during this process?

The atomic mass of thorium is 232 and its atomic number is 90. During the course of its radioactive disintegration 6 alpha and 4 beta particles are emitted. What is the atomic mass and atomic number of the atom?

The atomic mass of helium is 232 and its atomic number is 90. During the course of its radioactive disintegration 6 alpha and 4 beta -particles are emitted. What is the atomic and atomic number of the final atoms?

A radioactive atom having atomic mass 236 and atomic number "90" disintegrates by emitting p a- particles and q beta -particles only.If the atomic mass of final atom is 212 and atomic number is 80, then the value of p times q is

""_(92)^(238)U emits an alpha -particle, the product has the atomic and mass numbers as

._(90)Th^(234) disintegrates to give ._(82)Pb^(206)Pb as the final product. How many alpha and beta particles are emitted during this process ?

What is the ratio of mass of a gold atom and an alpha -particle ?

._(90)^(234)Th disintegrates to give ._(82)^(206)Pb as the final product. How many alpha and beta particles are emitted in this process?