99 Es 아인슈타이늄 252.0 u

아인슈타이늄

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주기
7
족
—
블록
f-블록
상 (표준 상태)
Solid

아인슈타이늄은 최초의 수소폭탄 실험 낙진에서 발견되었다. 알베르트 아인슈타인의 이름을 땄다.

아인슈타이늄 개요

Debris from the first hydrogen bomb test yielded the earliest samples of einsteinium, the element having formed in the intense neutron flux of the explosion and been recovered from the fallout afterwards. It is named for Albert Einstein and carries atomic number 99 with a relative atomic mass of 252.0. The configuration [Rn] 5f11 7s2 places it deep in the actinide series of period 7, and its electronegativity is 1.3; it is a solid under standard conditions. Einsteinium is synthetic, intensely radioactive, and available only in quantities far too small for any application beyond laboratory study. What chemistry is known has been established on samples measured in micrograms or less.

물리적 성질

원자 질량 252.0 u
표준 상태에서의 상 Solid

전자적 성질

전기 음성도 1.3

전자 배치

배치 [Rn] 5f¹¹ 7s²

전자껍질 배치

아인슈타이늄의 전자껍질 배치 Es 2e⁻ 8e⁻ 18e⁻ 32e⁻ 29e⁻ 8e⁻ 2e⁻
아인슈타이늄의 전자껍질 구조 — 껍질별 전자 수.
껍질 전자
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 32
5 (O) 29
6 (P) 8
7 (Q) 2

주기율표에서의 위치

주기율표에서 아인슈타이늄의 위치 Es

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 91 Pa 프로트악티늄 92 U 우라늄 93 Np 넵투늄 94 Pu 플루토늄 95 Am 아메리슘 96 Cm 퀴륨 97 Bk 버클륨 98 Cf 캘리포늄

Frequently Asked Questions

What is 아인슈타이늄?
아인슈타이늄 (Es) is a chemical element with atomic number 99. It is a solid at standard temperature and pressure, classified as a 악티늄족.
What are the key properties of 아인슈타이늄?
아인슈타이늄 has an atomic mass of 252.0 u.
What is the electron configuration of 아인슈타이늄?
The electron configuration of 아인슈타이늄 is [Rn] 5f11 7s2. It is in the f-block of the periodic table.
What is the electronegativity of 아인슈타이늄?
아인슈타이늄 has an electronegativity of 1.3 on the Pauling scale.