Question

write the electronic configuration of element X and Y with atomic number 17 and element Y with atomic number 20 in the element X and Y​

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.... :))
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Answer 2

♥️HEYA♥️

⭐HERE WE TALK ABOUT CHEMISTRY'S CHAPTER

⭐ ELECTRONIC CONFIGURATION OF AN ELEMENT IS NUMBER OF ELECTRON PRESENT IN ITS EACH SHELL

⭐Well, element X has atomic number 17

electronic configuration is 2,8,7

⭐element Y has atomic number 20

electronic configuration is 2,8,8,2

HOPE ITS HELPFUL

#KHUSHI✌️♥️