What type of radiation is 4 2he?
Alpha particles (42He 2 4 He , also represented by the symbol 42α 2 4 α ) are high-energy helium nuclei. Beta particles (0−1β − 1 0 β , also represented by the symbol 0−1e − 1 0 e ) are high-energy electrons, and gamma rays are photons of very high-energy electromagnetic radiation.
What does the 4 in 4 2he stand for?
Terms in this set (24) A nuclide is. An atom with a specific number of neutrons and protons. What does the 4 in 4-2 He mean? The mass number.
What does the following nuclear symbol represent 4 2he?
Alpha particles (42He, also represented by the symbol 42α) ( 2 4 He , also represented by the symbol 2 4 α ) are high-energy helium nuclei.
What is the equation for nuclear reaction?
During a nuclear reaction (such as a fission or fusion reaction), the mass accounted for by the nuclear binding energy is released in accordance with the equation e = mc2 (energy = mass times the square of the speed of light).
What is gamma radiation used for?
Gamma rays are used in medicine (radiotherapy), industry (sterilization and disinfection) and the nuclear industry. Shielding against gamma rays is essential because they can cause diseases to skin or blood, eye disorders and cancers.
Why is He4 a boson?
1) He3 and He4 both have 2 electrons. These electrons form spin singlet state. 2) From the nuclear shell model, the two protons form singlet in ‘1s’ shell, also for two neutrons. Therefore, the nucleon of He4 is spin 0+0=0, which means boson.
What does the 4 in He represent?
Answer and Explanation: The 4 in helium-4 represents the atomic mass of one atom of the helium-4 element. The mass number is equal to the total number of protons and neutrons…
How do I balance a nuclear equation?
Nuclear reactions also follow conservation laws, and they are balanced in two ways:
- The sum of the mass numbers of the reactants equals the sum of the mass numbers of the products.
- The sum of the charges of the reactants equals the sum of the charges of the products.
What frequency is gamma?
Gamma rays have frequencies greater than about 10^19 cycles per second, or hertz (Hz), and wavelengths of less than 100 picometers (pm), or 4 x 10^9 inches.
Is he4 radioactive?
For example, hydrogen, the lightest element, has three isotopes with mass numbers 1, 2, and 3. Only hydrogen-3 (tritium), however, is a radioactive isotope, the other two being stable….How are radioactive isotopes used in medicine?
| isotope | half-life (years, unless noted) |
|---|---|
| 237U | 6.75 days |
| 238U | 4.468 × 109 |
Is he4 a boson?
Helium-4 with two protons and two neutrons has an even number of nuclei and is a boson.
What is the 4th element?
A naturally occurring element, Beryllium is the fourth element on the Periodic Table with the symbol “Be”. Beryllium is one-third lighter than aluminum, yet has six times the specific stiffness of steel.
For what purpose uranium-235 is used?
What is it used for? Uranium “enriched” into U-235 concentrations can be used as fuel for nuclear power plants and the nuclear reactors that run naval ships and submarines. It also can be used in nuclear weapons.