What is the atomic number of an element with 12 protons
- What is the atomic number of an element with 12 protons 10 neutrons and 12 electrons
- What is the atomic number of an element with 12 protons 13 neutrons and 12 electrons
- What is the atomic number of an element with 12 protons and 5 neutrons
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- Ортоломону колдонуп салмакты аныктоо 6 класс