"AQA A Level Atomic Structure Crossword": HTML5 Crossword

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1. Each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei (7)
4. These numbers determine the 'locations' and characteristics of electrons (7)
5. Regions on the periodic table where the same subshells are being filled (6)
6. A word sometimes used to describe one half of a p orbital (4)
8. These can be either s, p, d or f (9)
10. A word used to describe the shape of p orbitals (8)
11. The kind of spectra obtained when an electron drops from a higher energy level to a lower one (8)
13. When an electron is repelled by electrons in inner shells and prevented from feeling the full attraction of the nucleus (9)
15. Ernest Rutherford discovered existence of this entity by his gold foil experiment (7)
18. The word used to describe S orbitals (9)
19. Used to look at small particles by producing a spectra of their mass to charge ratio (12)
20. The process that occurs when light is absorbed by a subatomic particle (10)

Down

2. Each of the actual or potential patterns of electron density which may be formed in an atom or molecule by one or more electrons, and can be represented as a wave function (7)
3. The element with the electronic configuration [Ar] 3d10 4s2 4p1 (7)
7. Spin-pair ...................... ensures the second electron in an orbital is easier to remove than the first (9)
9. Chadwick discovered these neutral nucleons (7)
12. The element with the electronic configuration 1s2 2s2 2p6 3s2 3p6 3d8 4s2 (6)
14. The process by which an electron is lost from a gaseous atom (10)
16. Another name for energy level (5)
17. J.J. Thompson discovered the existence of this particle by using a Cathode Ray Tube. (8)