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Metals and Non-Metals — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceMetals and Non-Metals3 Marks
Question
An element ' $M$ ' with electronic configuration (2,8,3) combines separately with $Cl , SO ^2$ anions. Write the chemical formulae of the compounds formed. Predict with the suitable reason the nature of the bond formed by element ' $M$ ' in general. How will the electrical conductivity of the compounds formed vary with respect to 'M'?
✓

Answer

$
MCl _3 ; M _2\left( SO _4\right)_3
$
$M$ in general forms Ionic bond. It can acquire a stable electronic configuration of neon $(2,8)$ by losing its three valence electrons to form $M ^{3+}$ cation.
Compounds formed will conduct electricity in liquid / molten state but not in solid state in contrast to ' $M$

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