Calculate a x b
Look at the series (156, 615, 561, a, 413, 341, 132, b), determine the pattern, and calculate a x b.Correct answers: 61
The first user who solved this task is Slobodan Strelac.
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Bohr's model of the atomIn 1913, this date was written by Niels Bohr on his first paper describing his new ideas on atomic structure, and mailed to his mentor, Ernest Rutherford. It was one of three historic papers he wrote on this subject. |