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The alkali metals are the elements that make up Group 1 (IA) of the periodic table.The periodic table is a chart that shows how chemical elements are related to one another.Nuclear chemistry is the study of the chemical and physical properties of elements as influenced by changes in the structure of the atomic nucleus.Modern nuclear chemistry, sometimes referred to as radiochemistry, has become very interdisciplinary in its applications, ranging from the study of the formation of the elements in the universe to the design of radioactive drugs for diagnostic medicine.

Davy used a new method of isolating elements that he had invented, electrolysis.

Because they have a large charge, alpha particles ionise other atoms strongly.

Beta particles have a charge of minus 1, and a mass of about 1/2000th of a proton.

There is some evidence of slight seasonal variations in the rates of radioactive decay of some isotopes, which may be due to temperature differences. Or may be due to something else we don't know about yet.

For now, for GCSE exams, let's go along with the idea that the rate of radioactive decay does not depend on external factors.

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This should be no surprise, since we have an enemy set against us and our impending marriage (1 Pet. He hates God, and he hates marriage because it depicts the gospel (Eph. One of Satan's most effective strategies to corrupt the gospel-portraying union of marriage is to attack couples through sexual sin before they say “I do.” Here are four of his most common ploys to attack marriages before they begin.

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