Pa
Actinide
Protactinium Gyakkyou
Protactinium Gyakkyou
Element 91. Named "proto-actinium" — precursor of actinium, as Pa-231 alpha-decays to Ac-227. A silent craftsman bridging the giants Thorium (90) and Uranium (92). With a 32,760-year half-life — awkwardly between Ac's 21 years and U's 4.5 billion — it is an indispensable yet overlooked presence
Jungian Type: Type 1
Personality tendencies across 4 dimensions
内向 (I)18%外向 (E)
50
直観 (N)78%感覚 (S)
50
感情 (F)72%思考 (T)
50
知覚 (P)85%判断 (J)
50
Enneagram Detailed Scores
Score distribution across 9 types
Big Five Personality Traits
Personality analysis based on the 5-factor model
Alloy Characteristics
Personality traits from metal physical properties
💰Price & Economic Data
Market price and economic characteristics (as of 2026-02)
Price Range
Market Trends & Notes
天然存在量が極微量でウラン廃棄物からの分離が必要。研究用Pa-231はOak Ridge国立研究所が限定供給。1961年に英国AEREが130gの純Pa金属を12万ポンド（当時）で精製した記録があり、kg単価は数万〜数十万ドル相当
🎨Element Colors
Scientific basis of Protactinium Gyakkyou's colors
Colors of this element
銀灰色
#A9A9A9
白色
#F0F0F0
💑Compatible Materials
Materials with good metallurgical and personality compatibility
Career Interests & Suggestions
Based on Holland Code: CRI
1st C - Conventional
2nd R - Realistic
3rd I - Investigative
1Quality Control Engineer
2System Administrator / DBA
3Certified Public Accountant
4Nuclear Safety Inspector
5Records Manager / Archivist
6Surveyor / Building Inspector
Based on RIASEC (Holland Code) vocational interest model. These are illustrative suggestions derived from the character's personality profile.