periodic table trick /p-block group 15 element trick /chemistry trick
AKP. GK. 0:16 2021-02-11 16:57 1 982 50 1

Теги

p-block group 15 element trickperiodic table trickeasy way to learn periodic tablelearn periodic tablememorize periodic tablememorize the periodic tableeasy way to remember periodic tableeasy method to learn periodic tablelearn periodic table in hindiperiodic table learning trickperiodic table class12modern periodic tableperiodic table in hindichemistry periodic tableperiodic table by shipra mam