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Structure of the Atom — Science STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9ScienceStructure of the Atom1 Mark
Question
An element has electronic configuration 2, 8, 4. It will be classified as:
✓

Answer

  1. Metalloid.
Explanation:
Quartz, an abundant ingredient in sand, is made up of non-crystallized silica. Silicon is neither metal nor non-metal; it's a metalloid, an element that falls somewhere between the two. Silicon is a semiconductor, meaning that it does conduct electricity.
Z Element No. of electrons/shell
14 Silicon 2, 8, 4

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