84 Po 폴로늄 209.0 u

폴로늄

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주기
6
족
16
블록
p-블록
상 (표준 상태)
Solid

폴로늄은 마리 퀴리가 발견한 희귀하고 방사능이 매우 강한 원소이다. 인공위성의 열원으로 쓰인 바 있다.

폴로늄 개요

Marie Curie identified polonium during her investigation of radioactive residues, and it remains among the rarest constituents of the crust. Its atomic number is 84, its relative atomic mass 209.0, and its configuration [Xe] 4f14 5d10 6s2 6p4 places it in group 16 of period 6 with an electronegativity of 2.0. It is a solid at standard temperature and pressure and is grouped with the post-transition metals. Intense radioactivity dominates every practical aspect of its handling. That same property has been turned to use: the decay heat of polonium has served as a compact thermal source aboard space satellites, where a small mass can sustain equipment temperature without any moving parts.

물리적 성질

원자 질량 209.0 u
표준 상태에서의 상 Solid

전자적 성질

전기 음성도 2.0

전자 배치

배치 [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁴

전자껍질 배치

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

주기율표에서의 위치

주기율표에서 폴로늄의 위치 Po

블록 & 주기

블록

s p d f

주기

1 2 3 4 5 6 7

주기율표

란타넘족 악티늄족

Po가 포함된 반응

폴로늄-210의 알파 붕괴

²¹⁰Po → ²⁰⁶Pb + ⁴He

핵

라돈-222의 알파 붕괴

²²²Rn → ²¹⁸Po + ⁴He

핵

더 많은 전이후 금속

13 Al 알루미늄 31 Ga 갈륨 49 In 인듐 50 Sn 주석 81 Tl 탈륨 82 Pb 납 83 Bi 비스무트

Frequently Asked Questions

What is 폴로늄?
폴로늄 (Po) is a chemical element with atomic number 84. It is a solid at standard temperature and pressure, classified as a 전이후 금속.
What are the key properties of 폴로늄?
폴로늄 has an atomic mass of 209.0 u.
What is the electron configuration of 폴로늄?
The electron configuration of 폴로늄 is [Xe] 4f14 5d10 6s2 6p4. It is in the p-block of the periodic table.
What is the electronegativity of 폴로늄?
폴로늄 has an electronegativity of 2.0 on the Pauling scale.