27 Co Cobalt 58.933 u

Cobalt

Add one script tag to your page:

<div data-chemfyi="element" data-slug="Co"></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/Co/?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/co/

Shields.io-compatible SVG badge:

Cobalt badge ![Cobalt](https://chemfyi.com/badge/element/Co.svg)

Web Component:

<chemfyi-element slug="Co"></chemfyi-element>
<script src="https://cdn.jsdelivr.net/npm/chemfyi-embed@1/dist/embed.min.js" defer></script>
주기
4
9
블록
d-블록
상 (표준 상태)
Solid

Cobalt is a hard, lustrous transition metal used in superalloys and blue pigments. It is a key component of lithium-ion batteries and vitamin B12.

외관: 단단하고 광택 있는 청회색

물리적 성질

원자 질량 58.933 u
밀도 8.9 g/cm³
녹는점 1494.8 °C
끓는점 2926.8 °C
표준 상태에서의 상 Solid
원자 반지름 152.0 pm

전자적 성질

전기 음성도 1.88
이온화 에너지 760.4 eV
전자 친화도 63.7 eV
원자가 전자 9

전자 배치

배치 [Ar] 3d⁷ 4s²

Electron Shell Configuration

Cobalt electron shell configuration Co 2e⁻ 8e⁻ 15e⁻ 2e⁻

Position in Periodic Table

Cobalt position in the periodic table Co

발견

발견자: Georg Brandt
연도: 1735

주기율표

란타넘족 악티늄족

Compounds Containing Cobalt

더 많은 전이 금속

Frequently Asked Questions

What is Cobalt?
Cobalt (Co) is a chemical element with atomic number 27. It is a solid at standard temperature and pressure, classified as a 전이 금속.
What are the key properties of Cobalt?
Cobalt has an atomic mass of 58.933 u, density of 8.9 g/cm³, melting point of 1494.8°C, boiling point of 2926.8°C.
What is the electron configuration of Cobalt?
The electron configuration of Cobalt is [Ar] 3d7 4s2. It is in the d-block of the periodic table.
Who discovered Cobalt?
Cobalt was discovered by Georg Brandt in 1735.
What is the electronegativity of Cobalt?
Cobalt has an electronegativity of 1.88 on the Pauling scale.