Читать книгу The Periodic Table of Elements - Alkali Metals, Alkaline Earth Metals and Transition Metals | Children's Chemistry Book - Baby Professor - Страница 7

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All stuff on Earth is made up of atoms. Basically, atoms are the building blocks of matter and they are made up of protons, neutrons, and electrons.

The Periodic Table of Elements - Alkali Metals, Alkaline Earth Metals and Transition Metals | Children's Chemistry Book

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