Across
- 5. A substance made of two or more atoms (of any type) chemically bonded together is called a...(8)
- 6. A substance made of only one type of atom is an...(7)
- 8. The metal elements in group 1 of the periodic table are the…(6,6)
- 10. A substance made of two or more different types of atom bonded in a specific ratio is a...(8)
Down
- 1. The way a substance behaves, what it is like or how it reacts is called a…(8)
- 2. A substance that speeds up a reaction without being used up is a…(8)
- 3. The non-metal elements in group 7 of the periodic table are the…(8)
- 4. For two substances to react then their particles must have a…(9)
- 7. The scientist who developed the modern day periodic table is Dmitri…(9)
- 9. The smallest type of particle that makes up all matter is an...(4)