1 to 30 elements with symbols and atomic mass number
- 1 to 30 elements with symbols and atomic mass in whole number
- 1 to 30 elements with symbols and atomic number and mass number and valency
- 1 to 30 elements and their symbols and atomic number and mass number
- Periodic table 1 to 30 elements with atomic number and mass and symbols
- Число 1 в дате рождения нумеролог андрей ткаленко