91 Pa Protactinium 231.04 u

Protactinium

Add one script tag to your page:

<div data-chemfyi="element" data-slug="Pa"></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/Pa/?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/hi/element/pa/

Shields.io-compatible SVG badge:

![Protactinium](https://chemfyi.com/badge/element/Pa.svg)

Web Component:

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

आवर्त

समूह

—

ब्लॉक

f-ब्लॉक

अवस्था (STP)

Solid

Protactinium is a scarce, radioactive actinide. It is one of the rarest and most expensive naturally occurring elements.

भौतिक गुण

परमाणु द्रव्यमान 231.04 u

STP पर अवस्था Solid

इलेक्ट्रॉनिक गुण

विद्युतऋणात्मकता 1.5

इलेक्ट्रॉन विन्यास

विन्यास [Rn] 5f² 6d¹ 7s²

Electron Shell Configuration

Position in Periodic Table

ब्लॉक और आवर्त

ब्लॉक

s p d f

आवर्त

1 2 3 4 5 6 7

आवर्त सारणी

लैंथेनाइड एक्टिनाइड

एक्टिनाइड में और

89 Ac Actinium 90 Th Thorium 92 U Uranium 93 Np Neptunium 94 Pu Plutonium 95 Am Americium 96 Cm Curium 97 Bk Berkelium 98 Cf Californium 99 Es Einsteinium

Frequently Asked Questions

What is Protactinium?

Protactinium (Pa) is a chemical element with atomic number 91. It is a solid at standard temperature and pressure, classified as a एक्टिनाइड.

What are the key properties of Protactinium?

Protactinium has an atomic mass of 231.04 u.

What is the electron configuration of Protactinium?

The electron configuration of Protactinium is [Rn] 5f2 6d1 7s2. It is in the f-block of the periodic table.

What is the electronegativity of Protactinium?

Protactinium has an electronegativity of 1.5 on the Pauling scale.