americium

americium

 (Am) [am″er-ish´e-um]

a chemical element, atomic number 95, atomic weight 243. (See Appendix 6.)

am·er·i·ci·um (Am),

(am'ĕ-ris'ē-ŭm),

An element obtained by the bombardment of uranium with neutrons or β decay of plutoniums 241, 242, and 243; atomic no. 95; atomic weight 243.06. ²⁴¹Am (half-life of 432.2 years) has been used in the diagnosis of bone disorders. ²⁴³Am has a half-life of 7370 years.

[the Americas]

americium

/am·er·ic·i·um/ (Am) (am″er-is´e-um) a chemical element, at. no. 95.

americium (Am)

[am′ərish′ē·əm]

a synthetic radioactive element of the actinide group. Its atomic number is 95; its atomic mass is 243.

am·er·i·ci·um

(Am) (am'ĕ-rish'ē-ŭm)

An element obtained by the bombardment of uranium with neutrons or beta decay of plutoniums 241, 242, and 243; atomic no. 95; atomic weight 243.06. ²⁴¹Am (half-life of 432.2 years) has been used in the diagnosis of bone disorders. ²⁴³Am has a half-life of 7370 years.

[the Americas]

americium

a chemical element, atomic number 95, atomic weight 243, symbol Am. See Table 6.