105 Db 더브늄 268.0 u

더브늄

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주기
7
족
5
블록
d-블록
상 (표준 상태)
Solid

더브늄은 합동원자핵연구소가 있는 러시아 도시 두브나의 이름을 땄다. 극히 적은 양만 생성되었다.

더브늄 개요

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.

물리적 성질

원자 질량 268.0 u
표준 상태에서의 상 Solid

전자 배치

배치 [Rn] 5f¹⁴ 6d³ 7s²

전자껍질 배치

더브늄의 전자껍질 배치 Db 2e⁻ 8e⁻ 18e⁻ 32e⁻ 32e⁻ 11e⁻ 2e⁻
더브늄의 전자껍질 구조 — 껍질별 전자 수.
껍질 전자
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 32
5 (O) 32
6 (P) 11
7 (Q) 2

주기율표에서의 위치

주기율표에서 더브늄의 위치 Db

블록 & 주기

블록

s p d f

주기

1 2 3 4 5 6 7

주기율표

란타넘족 악티늄족

더 많은 전이 금속

21 Sc 스칸듐 22 Ti 타이타늄 23 V 바나듐 24 Cr 크로뮴 25 Mn 망가니즈 26 Fe 철 27 Co 코발트 28 Ni 니켈 29 Cu 구리 30 Zn 아연

Frequently Asked Questions

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