Cover of The Mystery of the Invisible Building Blocks
Story languageEnglishEspaΓ±ol
ChemistryAtomicity and Valency

The Mystery of the Invisible Building Blocks

By Vaishnavi Renduchintala Β· Ages 8-15 PDF Book Free

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At the Discovery Dome, Riya and Kabir explore molecules with Dr. Meera and learn atomicity β€” how many atoms are in a molecule β€” and valency β€” how atoms combine to build the world around us.

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πŸ”¬ Science Element

Atomicity is the total number of atoms present in one molecule (Hβ‚‚ = 2, O₃ = 3, Hβ‚‚O = 3, Pβ‚„ = 4, Sβ‚ˆ = 8). Valency is the combining capacity of an atom (H = 1, O = 2, N = 3, C = 4). Atomicity counts atoms in a molecule; valency explains how atoms join to form substances.

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