Basic definitions - 1.3 0.0 / 5 ? ChemistryFormula. equations and amount of substanceASEdexcel Created by: Julius CeaserCreated on: 30-08-16 14:07 275136 Across 1. the actual number of atoms in a substance (9, 7) 2. substance composed of only one type of atom (7) 5. atoms of different types covalently bonded together (8) 6. an electrostatically charged atom (3) Down 2. the simplest ratio between atoms in a substance (9, 7) 3. atoms of different types chemically bonded together (8) 7. smallest unit of an element (4)
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