Atoms and reactions 0.0 / 5 ? ChemistryReactionsASOCR Created by: Amy-Zoe TaylorCreated on: 06-09-17 19:40 642531 Across 1. Weight of water can become heavier because of the isotopes of... (8) 4. Has a different number of neutrons and mass of the same element (7) Down 2. What are atoms mainly made of? (5) 3. The number of isotopes an element can have (3) 5. Deuterium and tritium are isotopes of... (8) 6. Found in the nucleus and is a fixed number for an element (6, 6)
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