Азотна катастрофа [Nature Category:
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“Азотна катастрофа е противоречие, до което се достига, ако се приеме, че атомното ядро се състои от 2Z протона и Z електрона. Тази хипотеза е съществувала в 20-те години на XX век. Нарича се азотна катастрофа, защото според тази теория ядрото на азот-14 би трябвало да има 14 протона и 7 електрона, и следователно полуцял спин. Експериментално било установено, че спинът на това ядро е цял. …” (Wikipedia) (Wikipedia translated)
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