91 Pa 프로트악티늄 231.04 u

프로트악티늄

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주기
7
족
—
블록
f-블록
상 (표준 상태)
Solid

프로트악티늄은 희귀한 방사성 악티늄족 원소이다. 자연에 존재하는 원소 가운데 가장 드물고 값비싼 축에 든다.

프로트악티늄 개요

Scarcity and cost define protactinium's place among the naturally occurring elements; it ranks with the rarest and the most expensive of them. Atomic number 91 and a relative atomic mass of 231.04 place it between thorium and uranium in the actinide series, and its configuration [Rn] 5f2 6d1 7s2 shows the 5f subshell beginning to fill. The Pauling electronegativity is 1.5, the highest among the early actinides, and the element is a solid under standard conditions. Because it is radioactive and occurs only in minute quantities within uranium ores, protactinium has no bulk industrial use. Its chemistry is studied instead for what the filling of the 5f orbitals reveals about bonding across the f-block.

물리적 성질

원자 질량 231.04 u
표준 상태에서의 상 Solid

전자적 성질

전기 음성도 1.5

전자 배치

배치 [Rn] 5f² 6d¹ 7s²

전자껍질 배치

프로트악티늄의 전자껍질 배치 Pa 2e⁻ 8e⁻ 18e⁻ 32e⁻ 20e⁻ 9e⁻ 2e⁻
프로트악티늄의 전자껍질 구조 — 껍질별 전자 수.
껍질 전자
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 32
5 (O) 20
6 (P) 9
7 (Q) 2

주기율표에서의 위치

주기율표에서 프로트악티늄의 위치 Pa

블록 & 주기

블록

s p d f

주기

1 2 3 4 5 6 7

주기율표

란타넘족 악티늄족

더 많은 악티늄족

89 Ac 악티늄 90 Th 토륨 92 U 우라늄 93 Np 넵투늄 94 Pu 플루토늄 95 Am 아메리슘 96 Cm 퀴륨 97 Bk 버클륨 98 Cf 캘리포늄 99 Es 아인슈타이늄

Frequently Asked Questions

What is 프로트악티늄?
프로트악티늄 (Pa) is a chemical element with atomic number 91. It is a solid at standard temperature and pressure, classified as a 악티늄족.
What are the key properties of 프로트악티늄?
프로트악티늄 has an atomic mass of 231.04 u.
What is the electron configuration of 프로트악티늄?
The electron configuration of 프로트악티늄 is [Rn] 5f2 6d1 7s2. It is in the f-block of the periodic table.
What is the electronegativity of 프로트악티늄?
프로트악티늄 has an electronegativity of 1.5 on the Pauling scale.