Question

Two elements m and n have atomic number 17 & 20 respectively write the formula of the compound formed when m and n react

Answer 1

Answer:

element m :- chlorine ( Cl)

element n:- calcium ( Ca)

compound :- calcium chloride ( CaCl2)

Explanation:

chlorine have atomic number 17 and calcium have atomic number 20 , thus they react and through criss cross method we get the following compound .

I hope it helps you !!

Answer 2

Answer:

these two elements will be chlorine and calcium respectively. the product of the reaction is calcium chloride ....

and their reaction will be like this

$Ca + Cl_{2} ==> \: CaCl_{2}$

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