SAT Subject Test Chemistry,10 edition

Nuclear Binding Energy and Mass Defect Every nucleus (other than ) has a smaller mass than the combined ...

Nuclear Reactions and Decay Nuclear reactions such as fusion, fission, and radioactive decay involve either comb ...

arrow is indeed balanced. To find the number of neutrons, solve for x in the last equation (arrow): So th ...

The “reactant” in a radioactive decay is known as the parent isotope while the “product” is the daughter isot ...

So A’ = 234 and Z’ = 90. Note that it was not necessary to know the chemical species of the isotopes to ...

A ́ = 60 Now balance the atomic numbers, taking into account that cobalt has 27 protons (you learn this ...

given the symbol e+ or β+. Positron emission is sometimes referred to as β+ decay, as distinguished from ...

The first reaction was a β+ decay (positron emission) that must have looked like: Again, balance the at ...

Solution: If 4 years is one half-life, then 12 years is three half-lives. During the first half-life—the fi ...

where λ is known as the decay constant, which is just the rate constant for the decay reaction. The ...

THINGS TO REMEMBER Atomic Number (Z) Mass Number (A) Isotopes Atomic Mass and Atomic Mass Unit Atomic Weight Fus ...

Review Questions 1 . Element is formed as a result of 3 α and 2 β– decays. Which of the following is the ...

Answer Key REVIEW QUESTIONS 1 . B 2 . 12 3 . 3 4 . –λ ...

Answers and Explanations REVIEW QUESTIONS 1 . B Emission of three alpha particles by the (as yet unknown) p ...

number of ^131 I nuclei remains, which also means that only 25% of the original mass of ^131 I remai ...

Chapter 16 Organic Chemistry Organic chemistry is the study of compounds containing the element carbon. This cove ...

sp^2 Hybridized The carbon atom forms a double bond and two single bonds, arranged in the same plane a ...

Hydrocarbons Hydrocarbons are compounds that contain only carbon and hydrogen atoms. Depending on the kinds ...

The simplest alkane is methane, CH 4 . Ethane, the next in the series, has the molecular formula C 2 H 6 , but th ...

Alkanes, especially straight-chain or n-alkanes, are the major constituents of petroleum. Since different alkane ...