Video narration
Porjay saronir chart e hydrogenke Group 1-er ekebare mathay rakha hoy, kintu se ki sotyi Group 1-er sodosso? Chart er ei tiletike ebar dui pasher doler songe miliye dekhi. Hydrogen er ekti elektron, tai Group 1-er moto tar bairer store ekti elektron thake. Seti harale toiri hoy H+ - ei milei take chart e oi jayga dewa sohoj mone hoy. Kintu ebar pasher arekti ghor, Group 17, diye hydrogenke jachai koro. Group 17-er moulogulor moto hydrogeno joray joray, H2, onu toiri kore. Kichu joug e se ekti elektron grohon kore H- o hote pare. Ei holo mor: eki tile Group 1-er songeo mele, Group 17-er songeo, kintu kono doler songei puropuri mele na. Se khar dhatur moto sob acharon kore na, halojen er motoo noy. Tai chart e Group 1-er opore rakha ekti byaboharik niyom, nikhut rashayonik porichoy noy. Proshner uttor? Hydrogen sadharonoto Group 1-er opore thake, kintu se porjay saronir ek bishesh byotikrom.