19 K Potassium 39,098 u

Potassium

Add one script tag to your page:

<div data-chemfyi="element" data-slug="K"></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/K/?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/vi/element/k/

Shields.io-compatible SVG badge:

Potassium badge ![Potassium](https://chemfyi.com/badge/element/K.svg)

Web Component:

<chemfyi-element slug="K"></chemfyi-element>
<script src="https://cdn.jsdelivr.net/npm/chemfyi-embed@1/dist/embed.min.js" defer></script>
Chu kỳ
4
Nhóm
1
Khối
s-khối
Pha (STP)
Solid

Potassium is an essential alkali metal for all living cells. It is the seventh most abundant element in Earth's crust.

Ngoại quan: Silvery-gray

Tính chất vật lý

Khối lượng nguyên tử 39.098 u
Mật độ 0.862 g/cm³
Điểm nóng chảy 63.6 °C
Điểm sôi 758.9 °C
Pha ở STP Solid
Bán kính nguyên tử 243.0 pm

Tính chất điện tử

Độ âm điện 0.82
Năng lượng ion hóa 418.8 eV
Ái lực electron 48.4 eV
Electron hóa trị 1

Cấu hình electron

Cấu hình [Ar] 4s¹

Electron Shell Configuration

Potassium electron shell configuration K 2e⁻ 8e⁻ 8e⁻ 1e⁻

Position in Periodic Table

Potassium position in the periodic table K

Khám phá

Được phát hiện bởi: Humphry Davy
Năm: 1807

Compounds Containing Potassium

Thêm Kim Loại Kiềm

Frequently Asked Questions

What is Potassium?
Potassium (K) is a chemical element with atomic number 19. It is a solid at standard temperature and pressure, classified as a kim loại kiềm.
What are the key properties of Potassium?
Potassium has an atomic mass of 39.098 u, density of 0.862 g/cm³, melting point of 63.6°C, boiling point of 758.9°C.
What is the electron configuration of Potassium?
The electron configuration of Potassium is [Ar] 4s1. It is in the s-block of the periodic table.
Who discovered Potassium?
Potassium was discovered by Humphry Davy in 1807.
What is the electronegativity of Potassium?
Potassium has an electronegativity of 0.82 on the Pauling scale.