36 Kr 크립톤 83.798 u

크립톤

Add one script tag to your page:

<div data-chemfyi="element" data-slug="Kr"></div>
<script src="https://cdn.jsdelivr.net/npm/chemfyi-embed@1/dist/embed.min.js" defer></script>

Embed as an iframe:

<iframe src="https://chemfyi.com/iframe/element/Kr/?style=modern&theme=light" width="420" height="400" frameborder="0" loading="lazy" style="border:0;border-radius:10px;max-width:100%"></iframe>

Paste the URL in WordPress, Medium, or Ghost:

https://chemfyi.com/ko/element/kr/

Shields.io-compatible SVG badge:

크립톤 badge ![크립톤](https://chemfyi.com/badge/element/Kr.svg)

Web Component:

<chemfyi-element slug="Kr"></chemfyi-element>
<script src="https://cdn.jsdelivr.net/npm/chemfyi-embed@1/dist/embed.min.js" defer></script>
주기
4
18
블록
p-블록
상 (표준 상태)
Gas

크립톤은 일부 형광등과 사진용 플래시에 쓰이는 비활성 기체이다. 그 스펙트럼선은 한때 미터의 정의에 쓰였다.

외관: 무색 기체, 흰색 고체

크립톤 개요

A colorless noble gas discovered by William Ramsay in 1898, krypton fills atomic number 36 with an atomic mass of 83.798. Its outer shell is complete ([Ar] 3d10 4s2 4p6), giving eight valence electrons and, unusually for a noble gas, a measurable electronegativity of 3.00 alongside a first ionization energy of 1351 kJ/mol; it condenses at 120 K. Krypton is used in certain fluorescent lamps and photographic flashes, and its sharp spectral lines were once used to define the meter. The gas belongs to group 18, period 4, among the noble gases.

물리적 성질

원자 질량 83.798 u
밀도 0.003749 g/cm³
녹는점 -157.4 °C
끓는점 -153.2 °C
표준 상태에서의 상 Gas
원자 반지름 88.0 pm

전자적 성질

전기 음성도 3.0
이온화 에너지 1350.8 eV
원자가 전자 8

전자 배치

배치 [Ar] 3d¹⁰ 4s² 4p⁶

전자껍질 배치

크립톤의 전자껍질 배치 Kr 2e⁻ 8e⁻ 18e⁻ 8e⁻
크립톤의 전자껍질 구조 — 껍질별 전자 수.
껍질 전자
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 8

주기율표에서의 위치

주기율표에서 크립톤의 위치 Kr

발견

발견자: William Ramsay
연도: 1898

Frequently Asked Questions

What is 크립톤?
크립톤 (Kr) is a chemical element with atomic number 36. It is a gas at standard temperature and pressure, classified as a 비활성 기체.
What are the key properties of 크립톤?
크립톤 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 크립톤?
The electron configuration of 크립톤 is [Ar] 3d10 4s2 4p6. It is in the p-block of the periodic table.
Who discovered 크립톤?
크립톤 was discovered by William Ramsay in 1898.
What is the electronegativity of 크립톤?
크립톤 has an electronegativity of 3.0 on the Pauling scale.