Across
- 1. Anything which occupies space and has mass
- 5. The gaseous form of a solid
- 6. The term used for a particular kind of matter
- 7. The outermost shell
- 9. The smallest particle of an element
- 11. The new substances formed as a result of a chemical reaction
- 12. The positively charged ions
- 13. The number of protons in the nucleus of an atom
- 14. Short form of an Element
- 15. Combining capacity of an elemeny
Down
- 2. A pure substance which cannot be broken into two or more substances by any known physical and chemical means
- 3. Solid State formed from the gaseous state on cooling
- 4. The substances which take part in a chemical reaction
- 8. The negatively charged ions
- 10. The number of protons and neutrons in the nucleus of an atom