Crosswords Puzzle

Horizontal Words

1. Heat transfer by passing on vibrations from one molecule to another (10)
3. The temperature at which all molecular vibration stop (12)
5. The energy needed to break a nucleus apart into its individual nucleons = (13)
7. Produced along with electron in beta minus decay (12)
9. The energy required to increase the temperature of 1 kg of substance by 1 K (20)
11. The element is used as fuel in nuclear power station (7)
13. High energy, high frequency, electromagnetic radiation, emitted from a decay (5)
14. larger nuclei are broken up into smaller nuclides (7)
16. Heat transfer by electromagnetic wave (9)
18. An electron with positive charge (8)
20. Water in 100-degree celcius (7)

Vertical Words

2. The part of the atom from which radioactive particles are emitted (7)
4. Absolute temperature (6)
6. Alpha particle is _____ nuclei (6)
8. Temperature scale with symbol F (10)
10. Another unit of energy besides joule (7)
12. A substance in which there are no forces between molecules (3)
15. Alongside with proton in the center of atom (7)
17. radiation from environmental sources (10)
19. solid to liquid (7)