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Problem 166 Hard Difficulty

While most isotopes of light elements such as oxygen and phosphorus contain relatively equal numbers of protons and neutrons, recent results indicate that a new class of isotopes called neutron-rich isotopes can be prepared. These neutron-rich isotopes push the limits of nuclear stability as the large number of neutrons approach the "neutron drip line." They may play a critical role in the nuclear reactions of stars. An unusually heavy isotope of aluminum
$\left(\begin{array}{l}43 \\ 13\end{array} A 1\right)$ has been reported. How many more neutrons does this atom contain compared to an average aluminum atom?

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Chemistry 101
Chemistry

Chapter 3

Mass Relationships in Chemical Reactions

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Chemical reactions and Stoichiometry

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04:02
Chemical Reactions and Stoichiometry - Intro

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another. Chemical reactions can be either spontaneous, requiring no input of energy, or non-spontaneous, typically following the input of some type of energy, such as heat, light or electricity. Chemical reactions are usually characterized by a chemical change, and they yield one or more products after the reaction is complete. Chemical reactions are described with chemical equations, which symbolically present the starting materials, end products, and sometimes intermediate products and reaction conditions. Chemical reactions happen at a characteristic reaction rate at a given temperature and chemical concentration. Typically, reaction rates increase with increasing temperature because there is more thermal energy available to reach the activation energy necessary for breaking bonds between atoms.
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08:02
Combination and Decomposition Reactions

In chemistry, a combination reaction is a chemical reaction in which two or more reactants combine to form more than one product. In a decomposition reaction, one reactant splits into two or more products.
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Video Transcript

solution for the about problem. Moving out. Date the human eye Still above aluminum? Yeah, the atomic number 13 Meaning did It is, sir Gene. Well done. And the most number 40 three sings must number it. Waas It was doing some are road owns in your drones. Begin Kilic late The number of new drones so x is it Will do Must numbered my knees. Atomic number Exisiting dramas number 40 tree minus atomic number Turgeon So x is it murder Two? We give Terje new groans home. They were a new monium eight Dumb. He's us with the it don't make number to Jean, but eat mass number. He's brandy Seven. So it X is he? Well true. Must number minus it told me Numbers X is equal. Drew must number is 27 minus atomic number, please. 13 eggs. Easy. 1 to 14. New dries Those this Adam He's 16 more neutrons then previously mentioned I storms giving 30. It don't make muss and 40 atomic numbers. So the answer is this isn't a mere 16 more neutrons and cities 16

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