69 Tm 툴륨 168.93 u

툴륨

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주기
6
족
—
블록
f-블록
상 (표준 상태)
Solid

툴륨은 지각에서 가장 희귀한 란타넘족 원소이다. 휴대용 X선 장비와 고체 레이저에 쓰인다.

툴륨 개요

The least abundant lanthanide in Earth's crust, thulium (Tm) is among the rarest of the rare earth elements. Element 69 sits in period 6 of the f-block, with an atomic mass of 168.93, the electron configuration [Xe] 4f¹³ 6s², and a Pauling electronegativity of 1.25. When irradiated in a reactor, one of its isotopes emits X-rays, which allows thulium to serve as the radiation source in compact, portable X-ray devices. The element also appears in certain solid-state and fiber lasers. A soft, silvery metal, thulium is solid at standard conditions.

물리적 성질

원자 질량 168.93 u
표준 상태에서의 상 Solid

전자적 성질

전기 음성도 1.25

전자 배치

배치 [Xe] 4f¹³ 6s²

전자껍질 배치

툴륨의 전자껍질 배치 Tm 2e⁻ 8e⁻ 18e⁻ 31e⁻ 8e⁻ 2e⁻
툴륨의 전자껍질 구조 — 껍질별 전자 수.
껍질 전자
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 31
5 (O) 8
6 (P) 2

주기율표에서의 위치

주기율표에서 툴륨의 위치 Tm

블록 & 주기

블록

s p d f

주기

1 2 3 4 5 6 7

주기율표

란타넘족 악티늄족

더 많은 란타넘족

57 La 란타넘 58 Ce 세륨 59 Pr 프라세오디뮴 60 Nd 네오디뮴 61 Pm 프로메튬 62 Sm 사마륨 63 Eu 유로퓸 64 Gd 가돌리늄 65 Tb 터븀 66 Dy 디스프로슘

Frequently Asked Questions

What is 툴륨?
툴륨 (Tm) is a chemical element with atomic number 69. It is a solid at standard temperature and pressure, classified as a 란타넘족.
What are the key properties of 툴륨?
툴륨 has an atomic mass of 168.93 u.
What is the electron configuration of 툴륨?
The electron configuration of 툴륨 is [Xe] 4f13 6s2. It is in the f-block of the periodic table.
What is the electronegativity of 툴륨?
툴륨 has an electronegativity of 1.25 on the Pauling scale.