Pt
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Astatine (At) Study Guides

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Astatine (At) Revision Guide

Comprehensive revision guide for Astatine (At), covering its properties, radioactivity, and scientific significance. Essential for JEE/NEET.

Chemistry Periodic Table Halogens
Atomic Number 85
At

Astatine (At)

halogen

Technical Parameters

Atomic Mass
[210]
Period / Group / Block
P6 / G17 / p-block
Standard State
solid
Configuration
[Xe] 4f145d106s26p5
Electronegativity
2.2
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