elements X and Y with atomic radius number 15 and 20 react to produced a compound with formula :

Question

koikkara · Answer

@HemarubenY $\color{darkgreen}{~''Nice~To~Meet~You~!!"}$ 
Well, can you help me know what element has 
1.Atomic Radius=15= ?
2.Atomic Radius=20=?

koikkara · Answer

If reference Needed... http://home.centurytel.net/apurdy/element_11_20.htm Help me!, Together we can sort it out..!!

anonymous · Answer

Atomic radius 15 = phosphorus
Atomic raduis 20 = calcium 
 @Koikkara

koikkara · Answer

Alright, it took a little time to load... so, if we combine $Ca~+~P$, the reaction will be... ?

koikkara · Answer

Hmm... alright, $If~I~balance~the~equation~!!$$Ca~+~P~\to~Ca3(PO4)2, Calcium~Phosphate $, Because the charge on a calcium ion is +2 and the charge on a phosphate ion is -3. In order for the charges to balance there needs to be 3 calciums and 2 phosphates.

koikkara · Answer

@HemarubenY $This~is~how~you~do,~Equations~right~?$

anonymous · Answer

alright .. i got it .. thank you @Koikkara

koikkara · Answer

$WoW~!!~Amazing~!!$