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Which one of the following nuclei has a magic number of neutrons and/or protons?
Q20: Arrange the following gases in order of
Q37: A sample of ammonia gas at
Q42: A) Starting from the equation H
Q62: Which of the lines on the figure
Q65: Different chemical bonds have different potential energies.
Q65: Which relationship or statement best describes
Q71: Calculate the oxidation number of sulfur in
Q90: Select the classification for the following
Q102: Lithium forms compounds which are used in
Q104: For each of the following elements, indicate