Write atomic number 1 to 20
- Write elements from atomic number 1 to 20 along with their name and symbol
- Write electronic configuration of atomic number 1 to 20
- Write atomic number and atomic mass from 1 to 20
- Write electronic configuration with valency from atomic number 1 to 20
- Write the name of elements from atomic number 1 to 20
- Write atomic number and mass of elements from 1 to 20
- Write down the valency of elements having atomic number 1 to 20
- Draw atomic configuration of atomic number 1 to 20 write valency of each
- Write the symbols from 1 to 20 atomic number and valency
- Write number 1 to 5
- How to find atomic number
- How to write number