Ununoctium
noun, Chemistry, Physics.
1.
a superheavy, synthetic, radioactive element with a short half-life. Symbol: Uuo; atomic number: 118.
Read Also:
- Ununpentium
noun, Chemistry, Physics. 1. a superheavy, synthetic, radioactive element with a short half-life. Symbol: Uup; atomic number: 115. noun an unconfirmed synthetic superheavy chemical element with atomic number 115 Word Origin 2004 ununpentium (ə-nŭn’pěn’tē-əm) See element 115.
- Ununquadium
noun, Chemistry, Physics. 1. former name of flerovium. Symbol: Uuq. noun, Chemistry, Physics. 1. flerovium. noun, Chemistry, Physics. 1. a superheavy, synthetic, radioactive element with a very short half-life. Symbol: Fl; atomic number: 114. ununquadium (ə-nŭn’kwŏd’ē-əm) See element 114. element 114 Symbol Uuq An artificially produced radioactive element whose isotopes have mass numbers of 288 […]
- Ununseptium
noun, Chemistry, Physics. 1. a superheavy, synthetic, radioactive element with a short half-life. Symbol: Uus; atomic number: 117.
- Ununtrium
noun, Chemistry, Physics. 1. a superheavy, synthetic, radioactive element with a short half-life. Symbol: Uut; atomic number: 113. noun an unconfirmed synthetic chemical element with atomic number 113; also called eka-thallium Word Origin 2004 ununtrium (ə-nŭn’trē-əm) See element 113.
- Unununium
noun, Chemistry, Physics. 1. former name of roentgenium. Symbol: Uuu. noun, Chemistry, Physics. 1. a superheavy, synthetic radioactive element with a very short half-life. Symbol: Rg; atomic number: 111. noun, Chemistry, Physics. 1. roentgenium. unununium (ə-nə-nŭn’ē-əm) See element 111. element 111 Symbol Uuu An artificially produced radioactive element whose isotope has a mass number of […]