Question

Write the electronic configuration of two elements x and y whose atomic numbers are 20 and 17 respectively. write the molecular formula of the compound formed when element x reacts with element y. draw electron-dot structure of the product and also state the nature of the bond formed between both the elements.

Answer 1

Hey,,,
Electronic configuration of X – 2,8,8,2
Electronic configuration of Y – 2,8,7

Molecular formula –

X Y
2 1


$xy _{2}$Nature of bond -
The elements are Calcium and Chlorine....
"Calcium and Chlorine form an ionicbond in which Calcium donates an electron to Chlorine so that each atom can acquire a full valence shell.Calcium will donate two electrons, each goes to one Chlorine molecule therefore giving the resulting ionic compound a formula of CaCl2."
Hope it helps.... :))
Plz mark it as brainliest....... ;))

Answer 2

[fig:electron dot structure of cacl2]

x(ca)
atomic no-20
electronic configuration =2,8,8,2
y(cl)
atonic no-17
electronic configuration =2,8,7

when x(ca) react with y(cl).it can form cacl2
ca+cl-cacl2

Electron dot structure of cacl2 has ionic bond