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Radioactive Decay

Also known as nuclear decay, radioactive decay is the decrease of radiation through time.

540 Questions

What is the result radioactive decay?

One type of atom (nuclide) breaks up, emitting some particle and energy, and converting into another type of nuclide.

What is the effect of pressure on the rate of radioactive decay?

Pressure does not have a significant effect on the rate of radioactive decay, as it is mainly influenced by the instability of the nucleus of the atom. The decay process is determined by the nuclear forces within the atom, which are not significantly affected by external pressure changes.

What type of radiation does P-32 emit?

The radioactive decay of Phosphorus-32 emits only betaparticles (i.e. electrons) with a halflife of slightly longer than two weeks. No electromagnetic radiation at all is emitted.

How does carbon dating work with objects?

All living things absorb C14 carbon while they are alive on earth. When they die, they stop absorbing C14 and it begins to decay. Radiocarbon dating measures the amount of carbon-14 left in human or plant remains, and then scientists can estimate the amount of time the thing has been dead

How do you find the half life in carbon dating?

You do not find the half life in carbon dating. The half lives of carbon isotopes are derived by studying their radioactive decay. For carbon dating, the isotope used is Carbon-14, which has a half life of 5,700 years.

What is the nuclear equation for titonium?

Assuming you mean "titanium", and assuming you mean the equation for the nuclear decay: there are many different of those, since titanium (like just about many elements) has many different isotopes.

What is lost in an atom as a result of radioactive decay What equations relates this loss to energy produced?

Alpha decay is the loss of 2 protons and 2 neutrons

Beta-decay is the loss of a positron or electron

Gamma decay is the loss of a photon

The equation relates this loss to energy produced E=mc^2

What type of radiation is around us all the time?

Well, there is solar radiation, microwaves, radiowaves, x-rays, gamma rays, the stuff in glow in the dark bracelets, like glow sticks and those types of products (I can't remember the names of the ingredients though.) bananas, believe it or not are slightly irradiated, because of potassium which has irradiation, not much of it, though.

Is an input of energy required in order for nuclear decay to happen in an atom?

No, an input of energy is not required for nuclear decay to happen in an atom. Nuclear decay is a spontaneous process that occurs when an unstable nucleus emits particles or energy to become more stable.

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Three products of radioactive decay from most penetrating to least?

  1. Gamma rays: Highly penetrating electromagnetic radiation that can travel long distances through materials.
  2. Beta particles: High-speed electrons or positrons that can penetrate a few millimeters of material.
  3. Alpha particles: Heavier particles consisting of two protons and two neutrons, which are stopped by a few centimeters of air or a piece of paper.

Can carbon dating tell how old the person is?

No, carbon dating cannot determine the age of a living person. Carbon dating is used to determine the age of organic materials such as fossils or artifacts by measuring the decay of carbon isotopes. It is not used for dating the age of living organisms.

What illustration best describes radioactive decay?

A common illustration that best describes radioactive decay is a graph depicting exponential decay, where the y-axis represents the quantity of a radioactive substance and the x-axis represents time. This graph typically shows a steep decline, indicating that the amount of the substance decreases rapidly at first and then more slowly over time. Additionally, a visual of a parent isotope transforming into a daughter isotope can effectively represent the process of decay and the concept of half-life, which is the time it takes for half of the radioactive material to decay.

Why does titanium 44 radioisotope undergoes radioactive decay?

Titanium-44 undergoes radioactive decay because it is an unstable isotope, meaning its nucleus has an excess of energy or an imbalance of protons and neutrons. This instability leads to a process known as beta decay, where a neutron is transformed into a proton, emitting a beta particle (electron) and an antineutrino. Through this decay, titanium-44 seeks to reach a more stable configuration, often transforming into a different element, in this case, vanadium-44. The decay process continues until a stable isotope is formed.

What characteristic of radioactive decay makes it useful for determining the absolute age of samples?

Radioactive decay is characterized by its predictable and constant rate, known as the half-life, which is the time it takes for half of a radioactive substance to decay into a stable product. This consistency allows scientists to measure the ratio of parent isotopes to daughter isotopes in a sample, providing a reliable means to calculate its absolute age. By knowing the half-life of the isotopes involved, researchers can accurately date geological formations, archaeological artifacts, and fossils. This method is particularly effective for materials that are millions to billions of years old.

When is nuclear decay by alpha particle emission more common in atoms?

Nuclear decay by alpha particle emission is more common in heavy atoms, typically those with atomic numbers greater than 82, such as uranium and radium. These heavy nuclei are unstable due to their large number of protons and neutrons, leading to a higher likelihood of alpha decay as a means to achieve a more stable configuration. The process involves the emission of an alpha particle, which consists of two protons and two neutrons, thereby reducing the nucleus's mass and atomic number.

How much energy is released if a sample loses .0001 kg of its mass through radioactive decay?

The energy released when a mass is lost can be calculated using Einstein's equation, (E = mc^2), where (E) is energy, (m) is mass, and (c) is the speed of light (approximately (3 \times 10^8) m/s). For a mass loss of 0.0001 kg, the energy released would be (E = 0.0001 , \text{kg} \times (3 \times 10^8 , \text{m/s})^2), which equals approximately (9 \times 10^{13}) joules. This is an immense amount of energy, highlighting the efficiency of mass-to-energy conversion in nuclear reactions.

What is radioactive decay of radon used for?

The radioactive decay of radon is used in radiation therapy for cancer treatment. Radon isotopes emit alpha particles which can be directed towards cancerous cells to kill them. This targeted radiation therapy helps in shrinking tumors and reducing cancer cell growth.