Question

20. Write the electronic configuration two elements X and Y whose atomic numbers are 20 and
17 respectively. Write the Molecular formula of the compound formed when element X réacts
with element Y. Draw electron-dot structure of the product and also state the nature of the
bond formed between both the elements
11​

Answer 1

Answer:

Hey,

Electronic configuration of X – 2,8,8,2

Electronic configuration of Y – 2,8,7

Molecular formula –

X Y

2 1

xy _{2}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."

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