Across
- 2. The atom circle holder
- 5. Gas
- 7. Release of cool
- 9. Element property between solid and solid non-metal
- 10. Solid material
- 12. No charge
- 13. Two or more elements
- 14. Russian chemist
- 15. 118 of them
- 16. Non-metal element
- 17. Not created not destroyed
- 21. Reaction of the product
- 22. Central part
- 23. Positive charge
Down
- 1. Abbreviation of the element
- 3. Number of protons and electrons
- 4. Charge of negative energy
- 6. The basic unit of an element
- 8. Outer most Orbital
- 11. The weight
- 18. Release of heat
- 19. A group of atoms
- 20. The substance formed by atoms