Helium, atom model of helium-4 with 2 protons, 2 neutrons and 2 electrons
RFID:Image ID:2PPWY89
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Panther Media GmbH / Alamy Stock VectorImage ID:
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PeterHermesFurianMore information:
Helium, atomic model. Chemical element and noble gas with symbol He and atomic number 2. Bohr model of helium-4, with atomic nucleus of 2 protons, 2 neutrons, and with 2 electrons in the atomic shell.