Write a balanced equation for each of the following nuclear...

Name: Problem 46, Chapter 21: Chemistry
Uploaded: 2021-07-01T19:59:40-08:00
Duration: 2 min 59 s
Channel: Anthony Han
Description: Write a balanced equation for each of the following nuclear reactions: (a) mercury-180 decays into platinum-176 (b) zirconium- 90 and an electron are produced by the decay of an unstable nucleus (c) thorium-232 decays and produces an alpha particle and a radium-228 nucleus, which decays into actinium-228 by beta decay (d) neon-19 decays into fluorine-19

Write a balanced equation for each of the following nuclear reactions: (a) mercury-180 decays into platinum-176 (b) zirconium- 90 and an electron are produced by the decay of an unstable nucleus (c) thorium-232 decays and produces an alpha particle and a radium-228 nucleus, which decays into actinium-228 by beta decay (d) neon-19 decays into fluorine-19

Write a balanced equation for each of the following nuclear reactions:
(a) mercury-180 decays into platinum-176
(b) zirconium- 90 and an electron are produced by the decay of an unstable nucleus
(c) thorium-232 decays and produces an alpha particle and a radium-228 nucleus, which decays into actinium-228 by beta decay
(d) neon-19 decays into fluorine-19

Key Concepts

Conservation Laws in Nuclear Reactions

In nuclear reactions, two fundamental conservation laws must be upheld: the conservation of nucleon number (or mass number) and the conservation of charge (atomic number). These principles ensure that the total number of protons and neutrons, as well as the overall electrical charge, remain constant before and after the reaction, which is essential for constructing a balanced nuclear equation.

Nuclear Reaction Balancing

Balancing nuclear equations requires adjusting the reaction to ensure that both the mass numbers and atomic numbers are equivalent on both sides of the reaction. This process can involve adding particles such as alpha particles, beta particles, or electrons, and, when dealing with decay chains, ensuring that intermediate products are properly accounted for in sequential decay steps.

Alpha Decay

Alpha decay is a type of radioactive decay in which an unstable nucleus emits an alpha particle, which consists of two protons and two neutrons. This emission reduces the original nucleus's mass number by four and its atomic number by two, a change that must be reflected in the balanced nuclear equation.

Beta Decay

Beta decay involves the transformation of a neutron into a proton (or vice versa) with the emission of a beta particle (an electron or positron) along with a neutrino or antineutrino. In beta-minus decay, a neutron converts into a proton, increasing the atomic number by one while leaving the mass number unchanged, ensuring conservation laws are respected. For beta-plus decay, a proton transforms into a neutron, decreasing the atomic number by one.

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