85 At Astatine 210,0 u

Astatine

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الدورة
6
المجموعة
17
الكتلة
p-كتلة
الطور (STP)
Solid

Astatine is the rarest naturally occurring element on Earth. Only about 25 grams exist in the crust at any time.

الخصائص الفيزيائية

الكتلة الذرية 210.0 u
الطور عند STP Solid

الخصائص الإلكترونية

الكهروسالبية 2.2

التوزيع الإلكتروني

التهيئة [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁵

Electron Shell Configuration

Astatine electron shell configuration At 2e⁻ 8e⁻ 18e⁻ 32e⁻ 18e⁻ 7e⁻

Position in Periodic Table

Astatine position in the periodic table At

الكتلة والدورة

الكتلة

s p d f

الدورة

1 2 3 4 5 6 7

الجدول الدوري

اللانثانيدات الأكتينيدات

المزيد من هالوجين

9 F Fluorine 17 Cl Chlorine 35 Br Bromine 53 I Iodine

Frequently Asked Questions

What is Astatine?
Astatine (At) is a chemical element with atomic number 85. It is a solid at standard temperature and pressure, classified as a هالوجين.
What are the key properties of Astatine?
Astatine has an atomic mass of 210.0 u.
What is the electron configuration of Astatine?
The electron configuration of Astatine is [Xe] 4f14 5d10 6s2 6p5. It is in the p-block of the periodic table.
What is the electronegativity of Astatine?
Astatine has an electronegativity of 2.2 on the Pauling scale.