A - ions
B - elements
C - isotopes
D - compounds
2006-07-13 18:50:34 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Isotopes
2006-07-13 18:53:37 · answer #1 · answered by extton 5 · 1⤊ 0⤋
Uranium, n. Chemical element, atomic number. 92, atomic weight 238.07, sign- U, a radioactive , hard, white metal made up of a mixed group of isotopes of atomic weights 238, 235, and 234, the first of these (U238) having a half life of (4.5 x 10 raised to 9) years.
2006-07-13 19:05:39 · answer #2 · answered by gangadharan nair 7 · 0⤊ 0⤋
Yep, isotopes. But their is great interest in having one kind, because it is much easier to get a chain reaction going. The capture cross section for slow moving neutron is much greater for U-235. That's why people want to purify it.
2006-07-13 20:08:15 · answer #3 · answered by James W 2 · 0⤊ 0⤋
C-isotopes
2006-07-13 19:31:13 · answer #4 · answered by Anonymous · 0⤊ 0⤋
isotopes
differentatomic number same mass number
2006-07-13 19:05:32 · answer #5 · answered by corrona 3 · 0⤊ 0⤋
they are isotopes that is they different number of neutron.
2006-07-13 19:34:45 · answer #6 · answered by eshaghi_2006 3 · 0⤊ 0⤋
C - isotopes
2006-07-13 19:10:04 · answer #7 · answered by Anonymous · 0⤊ 0⤋
C
2006-07-13 18:54:39 · answer #8 · answered by boxertim2 1 · 0⤊ 0⤋