Nuclear equations writing

Given an incomplete nuclear equation, write the symbol for the missing component. 

To discuss nuclear reactions in any depth, we must understand how to write and balance nuclear equations. Writing a nuclear equation differs somewhat from writing equations for chemical reactions. In addition to writing the symbols for the various chemical elements, we must also explicitly indicate the number of subatomic particles in every species involved in the reaction. 

Promethium (Z = 61) is essentially nonexistent in nature all of its isotopes are radioactive. Write balanced nuclear equations for the decomposition of... 

STRATEGY Write the nuclear equation for each reaction, representing the daughter nuclide as E, with atomic number Z and mass number A. Then find Z and A from the requirement that both mass number and atomic number are conserved in a nuclear reaction, (a) In a decay, two protons and two neutrons are lost. As a result, the mass number decreases by 4 and the atomic number decreases by 2 (see Fig. 17.7). (b) The loss of one negative charge when an electron is ejected from the nucleus (Fig. 17.8) can be interpreted as the conversion of a neutron into a proton within the nucleus ... 

Self-Test 17.2A Identify the nuclide produced and write the nuclear equation for (a) electron capture by beryllium-7 (b) positron emission by sodium-22. 

STRATEGY The nuclear binding energy is the energy released in the formation of the nucleus from its nucleons. Use H atoms instead of protons to account for the masses of the electrons in the He atom produced. Write the nuclear equation for the formation of the nuclide from hydrogen atoms and neutrons, and calculate the difference in masses between the products and the reactants convert the result from a multiple... 

Write, complete, and balance nuclear equations (Examples 17.1 and 17.2). 

Write the balanced nuclear equation for each of the following decays (a) (3 decay of tritium (b) (3 decay of yttrium-83 (c) (3 decay ot krypton-87 (d) a decay of protactinium-225. 

Write the balanced nuclear equation for each of the following radioactive decays (a) p decay of uranium-233 ... 

Determine the particle emitted and write the balanced nuclear equation for each of the following nuclear transformations (a) sodium-24 to magnesium-24 (b) l28Sn to 128Sb (c) lanthanum-140 to barium-140 (d) 228Th to 224Ra. 

Write balanced nuclear equations for the radioactive decay of each of the following nuclides (a) 4Kr, p+ emission ... 

Identify the daughter nuclides in each step of the radioactive decay of uranium-235, if the string of particle emissions is a, p, a, P, ct, a, a, P, a, p, a. Write a balanced nuclear equation for each step. 

Write a nuclear equation for each of the following processes (a) oxygen-17 produced by a particle bombardment of nitrogen-14 (b) americium-240 produced by neutron bombardment of plutonium-239. 

Write a nuclear equation for each of the following transformations (a) 25 Rf produced by the bombardment of califomium-245 with carbon-12 nuclei (b) the first synthesis of 266Mt by the bombardment of bismuth-209 with iron-58 nuclei. Given that the first decay of meitnerium is by a emission, what is the daughter nucleus ... 

Sodium-24 (23.990 96mu) decays to magnesium-24 (23.985 04mu). (a) Write a nuclear equation for the decay. 

Actinium-225 decays by successive emission of three u particles, (a) Write the nuclear equations for the three decay processes, (b) Compare the neutron-to-proton ratio of the final daughter product with that of actinium-225. Which is closer to the band of stability ... 

D) The positron is a particle with the same mass as the electron but the opposite charge. The net effect is to change a proton to a neutron. Begin by writing the nuclear equation. 

The sum of the mass numbers on the left of the equation is 36 (35 + 1) and on the right is 1 + x. The mass number of the unknown isotope must be 35. The sum of the atomic numbers on the left is 17 (17 + 0) and 1 + y on the right. The atomic number of the unknown must then be 16. This atomic number identifies the element as sulfur, so that we can write a complete nuclear equation ... 

Write the nuclear equation for the radioactive decay of potassium-40 by beta emission. Identify the parent and daughter nuclides in the decay. 

You have 0 200 g 0f2J Po. How much of wil1 remain 21-° days from now Write the nuclear equation for the reaction. 

Write nuclear equations to show the disintegration of the first six radioactive isotopes listed in Table 26-1. 

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