Crossword

3. The abundant element on the earth's surface
4. My teacher calls himself
6. The transfer of heat by the fluid to the upward and downward motion caused by buoyancy
8. It is the lightest halogen element on the periodic table
10. It is the radiation emitted from radioactive materials and has the shortest electromagnetic waves
12. A small particle with a negative charge in all atoms
13. A type of particle that makes up an atom, with no charge
16. A compound of hydrogen and chlorine
20. force The force between a nucleon such as a proton and a neutron in an atomic nucleus

1. First place in the periodic table, the lightest element
2. An arrangement of light according to its wavelength
5. A substance consisting of the antiparticle
7. Minimum length for which the same shape repeats in a wave
9. My name is
11. The smallest unit of a substance
14. The name of light as a particle
15. Minimum unit of the compound
17. It is electrically neutral and belongs to a light particle of mass affected by weak gravitational interaction
18. A unit of frequency
19. According to the standard model, the most fundamental particles that make up our universe lepton and ?