Atoms, Elements and Compounds

1. Element

1.1. The simplest chemicals

2. Compound

2.1. A substance made from more than one type of atom

3. Mixture

3.1. Different materials in the same place but not chemically joined.

4. Property

4.1. Words we use to describe a substance

5. Ductile

5.1. Able to be pulled out into a wire.

6. Symbol

6.1. One or two letters that stand for the name of an element.

7. Nucleus

7.1. The centre of the Atom

8. Proton

8.1. Particle in the Nucleus with a Positive charge

9. Neutron

9.1. Part of the Nucleus with no charge

10. Electron

10.1. Part of the atom with a Negative charge.

11. Period

11.1. A Horizontal part of the Periodic table

12. Group

12.1. A vertical section of the Periodic table

13. Row

13.1. A horizontal arrangement

14. Organise

14.1. Put things into a sensible pattern.

15. Reactive

15.1. Chemicals that react easily

16. Atom

16.1. The smallest bit of an element

17. Molecule

17.1. Atoms chemically joined together

18. Physical

18.1. Properties that are not chemical, Boiling point, for example

19. Malleable

19.1. Can be hammered into a new shape

20. Formulae

20.1. Short name for chemicals

21. Model

21.1. A simplified way of thinking about how something works

22. Scatter

22.1. Spreading things out.

23. Column

23.1. A vertical arrangement of things.