প্রয়োজনীয় কিছু মৌলের যোজনী জেনে নিন কাজে লাগবে

 

\ ‡hvR¨Zv Abymv‡i †gŠj| g~~jK mg~‡ni †kªYx wefvM \

	GK †hvRx	w؇hvRx	wÎ †hvRx	PZz‡h©vRx	c‡hvRx	lo †hvRx
AavZz	nvB‡Wªv‡Rb = H ‡d¬vwib      = F ‡K¬vwib      = Cl ‡eªvwgb      = Br Av‡qvwWb   = I	Aw·‡Rb   = O mvjdvi    = S Kve©b       = C	‡evib         = B bvB‡Uªv‡Rb   = N dmdivm     = P	mvjdvi     = S Kve©b        = C wmwjKb     = Si	bvB‡Uªv‡Rb  = N dmdivm    = P	mvjdvi   = S

                                                             

ধাতু

‡mvwWqvg    = Na cUvwmqvg    = K gviKvix (Avm) = Hg Kcvi (Avm) = Cu wmjfvi       = Ag ‡Mvì (Avm) = Au wjw_qvg      = Li

ক্যালসিয়াম=  C বেরিয়াম= Ba wRsK   = Zn               †ewiwjqvg  = Be g¨vM‡bwmqvg  = Mg       †jW (Avm) = Pb Kcvi (BK)= Cu ‡Kvevë  =Co gviKvix (BK)=Hg g¨vsMvwbR  = Mn Avqib (Avm)=Fe  K¨vWwbqvg = Cd wUb (Avm)  = Sn   wb‡Kj  = Ni ÷ªbwmqvg = Sr

A¨vjywgwbqvg  =  Al Avqib (BK)  = Fe ‡Mvì (BK)    = Au wemgv_         = Bi ‡µvwgqvg (Avm) = Cr A¨vw›Ugwb (Avm) = Sb Av‡m©wbK (Avm) = As

wUb (BK) = Sn c­vwUbvg   = Pt ‡jW (Avm) = Pb wRi‡Kvwbqvg = Zr

Av‡m©wbK (BK) = As A¨vw›Ugwb (BK) = Sb

†µvwgqvg (BK) =  Cr

যৌগ মূলক

A¨v‡gvwbqvg     = NH4 dm‡dvwbqvg    = PH4 bvB‡UªU          = NO3 bvBUªvBU         = NO2 nvB‡Wªv·vBW    = OH mvqvbvBW      = CN evB Kve©‡bU    = HCO3 evB mvj‡dU    = HSO4 cvi g¨v½v‡bU  = KMnO4 mvqv‡bU         = CNO ‡K¬v‡iU          = ClO3

কাবোনেট= CO3    mvj‡dU            = SO4 mvjdvBU           = SO3    _v‡qv mvj‡dU     = S2O3 ‡UUªv mvqv†bU     = S4O6 ‡µv‡gU            = CrO4 ডাই ক্রোমেট= Cr2O7 wmwj‡KU           = SiO3

dm‡dU    = PO4 dmdvBU  = PO3 ‡ev‡iU     = BO3 Av‡m©‡bU  = AsO4 অ্যালুমিনিয়াম=AsO3 ফেরিসায়ানাইট = Fe(CN)6