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Atomic nuclei are collections of positively charged protons and (as the name suggests) neutrally charged neutrons, which are held together by a fundamental force known as the strong force. Although the nucleus typically makes up just .01% of an atom’s volume, more than 99.9% of the atom’s mass is harbored there. An understanding of the nucleus is important for understanding how an atom will react with its surrounding environment, as the chemical properties of a substance are determined by the negatively charged electrons enshrouding the nucleus. The number of protons in the nucleus is usually equal to the number of electrons, and a mismatch results in the creation of an ion.
Nuclear Properties | 05:37 |
Binding Energy | 09:33 |
Radioactivity | 06:24 |
Half-Life and Mass Spectrometry | 09:58 |
Quiz zum Kurs „Atomic Nucleus“ |