Introductory Vocabulary Review - Atoms

2. Sodium, lithium and caesium are all examples of these...
4. A substance made of atoms of two or more different elements.
6. The ability of an atom to attract electrons when the atom is in a compound.
9. A sub-atomic particle with no charge.
11. A region of space around the nucleus where electrons are likely to be found.
12. The broad category of elements arranged on the left of the periodic table.
14. A bond formed when atoms share electrons.
16. A group of atoms bonded together.
17. The elements found in group 17.
18. The central part of the atom.
19. Atoms of the same elements with different numbers of neutrons.

1. In a Bohr diagram, electrons are arranged in...
2. The distance from the nucleus to the outer edge of the electron cloud.
3. A bond formed by atoms giving or receiving electrons from another atom.
5. A chart of the elements, arranged by atomic number.
7. A positively charged particle in the nucleus.
8. An electron in the outermost shell of an atom.
10. The inert gases found on the right-hand side of the periodic table.
13. A substance that cannot be broken down into simpler substances by chemical means.
15. Typically dull, brittle, non-conductive elements (broadly speaking).