prepare a table containing symbols of the elements from atomic number 1 to 20, their atomic masses, atomic numbers, number of neutrons, number of electrons, number of protons and electronic configuration of the elements.
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First 20 elements of Periodic table :-
- H - Hydrogen
- He - Helium
- Li - Lithium
- Be - Beryllium
- B - Boron
- C - Carbon
- N - Nitrogen
- O - Oxygen
- F - Fluorine
- Ne - Neon
- Na - Sodium
- Mg - Magnesium
- Al - Aluminum
- Si - Silicon
- P - Phosphorus
- S - Sulfur
- Cl - Chlorine
- Ar - Argon
- K - Potassium
- Ca - Calcium
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