Across
- 4. A regular arrangement of particles
- 6. Bond formed between ions of opposite charge
- 7. The particles with a charge of 1 – and almost no mass in an atom
- 8. Molecules containing 2 atoms joined by a covalent bond
- 9. Not part of the desired chemical composition
- 11. Another name for positive ion
- 13. A unit of two or more atoms held in together covalent bonds
- 17. A column of the Periodic Table containing element with similar properties
- 19. Process in which particles mix by colliding randomly with each other and bouncing off
- 20. React with substances it comes into contact with
- 22. Can be bend or hammered into a shape
- 25. Can easily be drawn out into a wire
- 26. A substance in which two or more elements are chemically combined
- 28. Measure of how fast or slow something is
- 30. Halogens reacting with metals to form compounds
Down
- 1. A physical change from a solid to liquid
- 2. Tells you how much of one substance is dissolved in another substance
- 3. Another name for negative ion
- 5. Soluble bases; Hydroxides
- 10. Atoms of the same element, that have a different numbers of neutron
- 12. The center part of an atom, made up of protons and neutrons
- 14. A compound formed between oxygen and other element
- 15. There is only one substance in it
- 16. A chemical made in a chemical reaction
- 18. The liquid in which a solute is dissolved to make a solution
- 21. A starting chemical for a reaction
- 23. A solution of a slightly soluble compound calcium hydroxide
- 24. Makes a ringing sound when struck
- 27. The mass of a substance per unit volume
- 29. A substance containing only one type of atom; it cannot be broken