Je was op zoek naar: subatomic (Engels - Japans)

subatomic
亜原子粒子

subatomic particle
素粒子

subatomic particle (substance)
バリオン

it's subatomic particles in endless, aimless collision.
小さな分子が 漫然と衝突を繰り返す

not even the mysterious transformation of matter at the subatomic level.
素粒子レベルでの神秘的な変化でさえね

well, it does use giant magnets to fire billions of subatomic particles into their anti-particles at the speed of light to create miniature big bangs, so...
巨大な磁石を使い、何十億という亜原子粒子を 反粒子の中で光速に衝突させる。

the electron is a subatomic particle with a mass of m[sub]e[/ sub]=(9.1093897 & #177; 0.0000054)e-31 kg and a negative charge of [i]e[/ i]=(1.60217733 & #177; 0.00000049)e-19 c \t\t
電子は原子を構成する粒子。質量: m[sub]e[/sub]=(9.1093897#177; 0.0000054)e-31 kg 負電荷: [i]e[/i]=(1.60217733 & #177;0.00000049)e-19 c \t\t