Chemistry

5. Same atomic number but different mass number
8. Force between layers due to which viscosity changes
10. World's lightest solid
11. Process of applying a protective coat to prevent rust
12. The only liquid whose solid state is less denser than the liquid itself
13. An atom (isotope) has 4 electrons, 6 neutrons and 4 protons. Its net charge will be ____

1. Elements with the highest stability (have their outer shell completely filled with electrons) are called ______ gases
2. On increasing the temperature, the density ________
3. Intermolecular forces acting between water molecules
4. Particles of light
5. Branch of chemistry that deals with substances that are chemical combinations other than carbon
6. Hydrogen with mass number 3
7. Color having the highest wavelength
9. Ratio of a substance's mass to its volume