105 Db Dubnium 268,0 u

Dubnium

Add one script tag to your page:

<div data-chemfyi="element" data-slug="Db"></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/Db/?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/de/element/db/

Shields.io-compatible SVG badge:

Dubnium badge ![Dubnium](https://chemfyi.com/badge/element/Db.svg)

Web Component:

<chemfyi-element slug="Db"></chemfyi-element>
<script src="https://cdn.jsdelivr.net/npm/chemfyi-embed@1/dist/embed.min.js" defer></script>
Periode
7
Gruppe
5
Block
d-Block
Phase (STP)
Solid

Dubnium is named after the Russian city of Dubna, home of the Joint Institute for Nuclear Research. Only tiny amounts have been produced.

About Dubnium

The name dubnium points to Dubna, the Russian town that hosts the Joint Institute for Nuclear Research, one of the two laboratories responsible for most transactinide discoveries. The element holds atomic number 105 and a relative atomic mass of 268.0, and its configuration [Rn] 5f14 6d3 7s2 places it in group 5 of period 7, the transition-metal column headed by vanadium. Only minute quantities have ever been produced, and no electronegativity value has been established. Like its neighbours in the transactinide region, dubnium exists for a matter of seconds at most, so experimental chemistry is limited to techniques that can identify a single atom during the interval before it decays.

Physikalische Eigenschaften

Atommasse 268.0 u
Phase bei STP Solid

Elektronenkonfiguration

Konfiguration [Rn] 5f¹⁴ 6d³ 7s²

Electron Shell Configuration

Dubnium electron shell configuration Db 2e⁻ 8e⁻ 18e⁻ 32e⁻ 32e⁻ 11e⁻ 2e⁻
Electron shell structure of Dubnium — electrons per shell.
Shell Electrons
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 32
5 (O) 32
6 (P) 11
7 (Q) 2

Position in Periodic Table

Dubnium position in the periodic table Db

Block & Periode

Block

s p d f

Periode

1 2 3 4 5 6 7

Periodensystem

Lanthanide Actinide

Mehr Übergangsmetall

21 Sc Scandium 22 Ti Titanium 23 V Vanadium 24 Cr Chromium 25 Mn Manganese 26 Fe Iron 27 Co Cobalt 28 Ni Nickel 29 Cu Copper 30 Zn Zinc

Frequently Asked Questions

What is Dubnium?
Dubnium (Db) is a chemical element with atomic number 105. It is a solid at standard temperature and pressure, classified as a übergangsmetall.
What are the key properties of Dubnium?
Dubnium has an atomic mass of 268.0 u.
What is the electron configuration of Dubnium?
The electron configuration of Dubnium is [Rn] 5f14 6d3 7s2. It is in the d-block of the periodic table.