Across
- 6. The most reactive element in group 7 (halogens). It displaces all other halogens.
- 7. A gas which is present in many reactions. It is used by humans to allow them to survive and released by plants as a waste product.
- 9. The non metals in group 7 on the periodic table. They react with metals to form halides (eg sodium chloride)
- 10. Metals They are often a gas at room temperature. They react with metals. Examples include oxygen and nitrogen
Down
- 1. The metals in group 1 on the periodic table. They turn the water purple due as they make hydroxides (eg lithium Hydroxide)
- 2. The .............. point is where a liquid turns into a gas. Its a change of state.
- 3. The ............. number are the columns of the periodic table. There are 8 of these. (1-7 including 8)
- 4. They are solid at room temperature. They are on the left side of the periodic table. Examples include magnesium, iron and copper
- 5. The .............. table shows all the elements in the world. The table includes groups and periods.
- 8. The .............. point is where a solid turns into a liquid. Its a change of state.
- 9. Has the element symmbol: 'H'. It is a gas which is first on the periodic table