Radioactive Decay

Lise Meitner primarily utilized advanced experimental techniques in nuclear physics, including the study of radioactivity and the behavior of isotopes. She collaborated with chemist Otto Hahn to analyze radioactive decay products using methods such as radiochemical separation. Meitner also employed theoretical physics concepts to interpret experimental data and contribute to the understanding of nuclear fission. Her work relied heavily on the use of early 20th-century laboratory equipment and techniques available in her time.

The date isn't real. Radiocarbon dating assumes that the ratio of C-12 to C-14 remains constant. Whenever an event changes this ratio, as the Tunguska meterorite did, or nuclear weapons testing, the formula usually used is no longer valid.

All things lose a small amount of carbon-14 over time (decaying to nitrogen-14) and scientists measure the amount of carbon-14 remaining and see how much has been lost compared to a new animal.

Certain adjustments have to be made to this initial estimate as the amount of carbon-14 in the environment varies over time. Natural carbon-14 is made in the upper atmosphere by the result of the reaction of cosmic rays with atmospheric nitrogen. The levels of cosmic rays vary with the position of our solar system in the galaxy and events in nearby stars and in the universe beyond our galaxy. Also carbon-14 levels are elevated significantly above these natural levels by the neutrons emitted in above ground nuclear tests, significantly skewing carbon-14 dates of samples from 1945 until the present time (although most above ground nuclear testing stopped in 1963 this excess carbon-14 remains in the environment and is therefor still being incorporated into living things today).

Alpha

100 grams

No, only artifacts that were once part of living things can be carbon dated. Thus a piece of carved ivory can be carbon dated, but a stone arrowhead cannot.

Polonium-210 become lead-206 after the emission of an alpha particle.

It is negative beta particle emitted by a uranium nucleus and converting it to neptunium nucleus.

Energy

Nuclear instability (meaning instability of the nucleus of an atom) causes radioactive decay. This is a very complicated process, involving many subatomic particles (both fermions and bosons).

Platinum has 38 known isotopes, ranging from 78166Pt to 78203Pt. Of these, five are stable, one has a half-life of 6.5x1011 years, and all the others are relatively short, some being very, very short. I will show the longest lived, because you did not specify which one you were interested in.

78190Pt --> Alpha --> T1/2 = 6.5x1011 years --> 76186Os + 24He2+

1..35 x 10^15

213Bi --> 209Tl + 4He, 213Po + e-

209Tl --> 209Pb + e-

213Po --> 209Pb + 4He

209Pb --> 209Bi + e-

209Bi --> 205Tl + 4He

205Tl, stable

By using carbon 14 dating, scientists can date plants and animals that lived as long as 35,000 years ago.

age

231Pa---------alpha particle----------227Ac

After 48,2 days the amount of Th-234 will be 25 g.

About 58,000 years. After that amount of time, there will no longer be enough radioactive carbon in an object to measure. However, other radiometric dating methods can date much older materials.

The beta minus decay of polonium isotopes is extremely rare. Beta decay involve the increase of the atomic number with 1.
Example: Po-218----------------beta minus---------------At-218

Emitting alpha particles Am-241 decay to Np-237.

When a radioactive element slowly turns into another element/s when it emits various particles.

These are known as alpha, beta, and gamma rays. Alpha rays are helium-4 nuclei, beta rays can be electrons or positrons, gamma rays are high-energy electromagnetic waves.

These are known as alpha, beta, and gamma rays. Alpha rays are helium-4 nuclei, beta rays can be electrons or positrons, gamma rays are high-energy electromagnetic waves.

These are known as alpha, beta, and gamma rays. Alpha rays are helium-4 nuclei, beta rays can be electrons or positrons, gamma rays are high-energy electromagnetic waves.

These are known as alpha, beta, and gamma rays. Alpha rays are helium-4 nuclei, beta rays can be electrons or positrons, gamma rays are high-energy electromagnetic waves.

That'd be radon

beta radiation breaks it down to nitrogen-14 and has a half life of 5730 years