93 Np 넵투늄 237.0 u

넵투늄

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주기
7
족
—
블록
f-블록
상 (표준 상태)
Solid

넵투늄은 해왕성의 이름을 딴 최초의 인공 초우라늄 원소이다. 원자로에서 부산물로 생성된다.

넵투늄 개요

Neptunium was the first transuranium element to be made artificially, and the naming followed the sequence of the outer planets: the element beyond uranium took the name of the planet beyond Uranus. It holds atomic number 93 and a relative atomic mass of 237.0, with the configuration [Rn] 5f4 6d1 7s2 and an electronegativity of 1.36. The metal is solid under standard conditions and belongs to the actinide series of period 7. In practice, neptunium arises chiefly as a byproduct of reactor operation, formed when uranium fuel captures neutrons without undergoing fission. Its long-lived isotope is consequently a significant component of the actinide inventory that has to be accounted for in spent-fuel management.

물리적 성질

원자 질량 237.0 u
표준 상태에서의 상 Solid

전자적 성질

전기 음성도 1.36

전자 배치

배치 [Rn] 5f⁴ 6d¹ 7s²

전자껍질 배치

넵투늄의 전자껍질 배치 Np 2e⁻ 8e⁻ 18e⁻ 32e⁻ 22e⁻ 9e⁻ 2e⁻
넵투늄의 전자껍질 구조 — 껍질별 전자 수.
껍질 전자
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 32
5 (O) 22
6 (P) 9
7 (Q) 2

주기율표에서의 위치

주기율표에서 넵투늄의 위치 Np

블록 & 주기

블록

s p d f

주기

1 2 3 4 5 6 7

주기율표

란타넘족 악티늄족

Np가 포함된 반응

아메리슘-241의 알파 붕괴

²⁴¹Am → ²³⁷Np + ⁴He

핵

더 많은 악티늄족

89 Ac 악티늄 90 Th 토륨 91 Pa 프로트악티늄 92 U 우라늄 94 Pu 플루토늄 95 Am 아메리슘 96 Cm 퀴륨 97 Bk 버클륨 98 Cf 캘리포늄 99 Es 아인슈타이늄

Frequently Asked Questions

What is 넵투늄?
넵투늄 (Np) is a chemical element with atomic number 93. It is a solid at standard temperature and pressure, classified as a 악티늄족.
What are the key properties of 넵투늄?
넵투늄 has an atomic mass of 237.0 u.
What is the electron configuration of 넵투늄?
The electron configuration of 넵투늄 is [Rn] 5f4 6d1 7s2. It is in the f-block of the periodic table.
What is the electronegativity of 넵투늄?
넵투늄 has an electronegativity of 1.36 on the Pauling scale.