atom, the smallest building unit of matter, electron, negative charge, sodium, Na, nucleons, mass number, proton, atomic number, potassium, K, carbon, C, neutron, neutral, mass number, sum of protons and neutrons, atomic number, number of protons, isotopes, different forms of the same element, protium, has no neutrons

autor:

Tabela rankingowa

Motyw

Opcje

Zmień szablon

Przywrócić automatycznie zapisane ćwiczenie: ?