please answer me now.
2007-10-01 09:33:19 · 6 answers · asked by Avan23 1 in Science & Mathematics ➔ Earth Sciences & Geology
The nucleus of the atom is in an unusual high energy state. It's like it's hanging on the side of a cliff.
It will go to a lower energy state by emitting either: an alpha particle ( 2 protons + 2 neutrons), a beta particle (an electron or a positron) or a gamma ray (electromagnetic radiation)
That will put it in a lower energy state. It may repeat the process (in a "decay chain") or it may get to a stable state immediately.
2007-10-01 10:51:23 · answer #1 · answered by Bob 7 · 0⤊ 0⤋
Elements exist in several forms called isotopes. Some of the isotopes are "radioactive". Radioactivity is the process whereby an element spontaineously breaks down into another element. In the process energy is liberated. Radioactive elements have nuclei that are unstable. This instability is the result of an imbalance in the electroweak force and the strong nuclear force.
2007-10-01 17:50:43 · answer #2 · answered by rhm5550 3 · 0⤊ 0⤋
the atomic nucleus of the element is unstable, and decays to the produce the nucleus of a different element, plus energy (usually in the form of gamma rays, high speed electrons, or helium nuclei).
2007-10-01 16:42:50 · answer #3 · answered by vorenhutz 7 · 0⤊ 0⤋
It means that the element is giving off nuclear particles and is changing into another element.
2007-10-01 16:38:25 · answer #4 · answered by Jabberwock 5 · 0⤊ 0⤋
It means the isotope of the element is unstable, so it spontaneously decays to something more stable.
2007-10-01 16:41:28 · answer #5 · answered by chelseablue 3 · 0⤊ 0⤋
idk. google it
2007-10-01 16:40:20 · answer #6 · answered by Anonymous · 0⤊ 1⤋