36 Kr Krypton 83,798 u

Krypton

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Chu kỳ
4
Nhóm
18
Khối
p-khối
Pha (STP)
Gas

Krypton is a noble gas used in certain fluorescent lamps and photographic flashes. Its spectral lines were once used to define the meter.

Ngoại quan: Colorless gas, white solid

Tính chất vật lý

Khối lượng nguyên tử 83.798 u
Mật độ 0.003749 g/cm³
Điểm nóng chảy -157.4 °C
Điểm sôi -153.2 °C
Pha ở STP Gas
Bán kính nguyên tử 88.0 pm

Tính chất điện tử

Độ âm điện 3.0
Năng lượng ion hóa 1350.8 eV
Electron hóa trị 8

Cấu hình electron

Cấu hình [Ar] 3d¹⁰ 4s² 4p⁶

Electron Shell Configuration

Krypton electron shell configuration Kr 2e⁻ 8e⁻ 18e⁻ 8e⁻

Position in Periodic Table

Krypton position in the periodic table Kr

Khám phá

Được phát hiện bởi: William Ramsay
Năm: 1898

Khối & Chu kỳ

Chu kỳ

Bảng tuần hoàn

Lanthanide Actinide

Thêm Khí Hiếm

Frequently Asked Questions

What is Krypton?
Krypton (Kr) is a chemical element with atomic number 36. It is a gas at standard temperature and pressure, classified as a khí hiếm.
What are the key properties of Krypton?
Krypton has an atomic mass of 83.798 u, density of 0.003749 g/cm³, melting point of -157.4°C, boiling point of -153.2°C.
What is the electron configuration of Krypton?
The electron configuration of Krypton is [Ar] 3d10 4s2 4p6. It is in the p-block of the periodic table.
Who discovered Krypton?
Krypton was discovered by William Ramsay in 1898.
What is the electronegativity of Krypton?
Krypton has an electronegativity of 3.0 on the Pauling scale.