Period 1 element

Hydrogen ek chemical element hae, jiske atomic number 1 aur symbol H hae. Ii pura universe me sab se simple element hae. Hydrogen bina rang ke ek gas hae...

Helium ek chemical element hae, jiske chemical symbol He aur atomic number 2 hae. Ii bina rang ke ek gas hae, jon ki dusra element re react nai hoe hae...

Francium ek chemical element hae, jiske chemical symbol Fr, atomic number 87 hae....

Rubidium ek chemical element hae, jiske symbol Rb, atomic number 37 aur atomic mass 85.47 hae....

Boron ek chemical element hae jiske chemical symbol B, aur atomic number 5 hae. Crystalline Boron Flame test Flame test Kyselina trihydrogenboritá - H3BO3...

Caesium (nai to Cesium) ek chemical element hae, jiske atomic number 55 , symbol Cs aur atomic mass 132.91 hae. Dui German chemists, Robert Bunsen aur...

Potassium ek chemical element hae jiske symbol K, atomic number 19 aur atomic mass 39.098 hae. Potassium ke Sir Humphrey Davy, 1807 me, England me discover...

Sodium ek chemical element hae jiske symbol Na hae (jon ki Latin naam natrium se aais hae), jiske atomic number 11 hae. Radioactive emissions from 22...

Silver (symbol Ag) ek chemical element hae jiske atomic number 47, aur atomic weight 107.86 a.m.u. hae. Iske symbol Ag, Latin me silver ke sabd , argentum...

element does not have any stable nuclides, and a value in brackets, e.g. [209], indicates the mass number of the longest-lived isotope of the element...

Lithium (symbol Li) periodic table. ke tiisra chemical element hae. Iske matlab ii hae ki iske lage 3 protons aur 3 electron hae. Iske atomic number 3...