World War II aircraft had instruments with glowing radium-painted dials (see figure below). The activity of one such instrument was 1.3x105 Bq when new. What mass of 226Ra was present? Submit Answer After some years, the phosphors on the dials deteriorated chemically, but the radium did not escape. What is the activity of this instrument 47.0 years after it was made? Submit Answer
Radioactive decay
The emission of energy to produce ionizing radiation is known as radioactive decay. Alpha, beta particles, and gamma rays are examples of ionizing radiation that could be released. Radioactive decay happens in radionuclides, which are imbalanced atoms. This periodic table's elements come in a variety of shapes and sizes. Several of these kinds are stable like nitrogen-14, hydrogen-2, and potassium-40, whereas others are not like uranium-238. In nature, one of the most stable phases of an element is usually the most prevalent. Every element, meanwhile, has an unstable state. Unstable variants are radioactive and release ionizing radiation. Certain elements, including uranium, have no stable forms and are constantly radioactive. Radionuclides are elements that release ionizing radiation.
Artificial Radioactivity
The radioactivity can be simply referred to as particle emission from nuclei due to the nuclear instability. There are different types of radiation such as alpha, beta and gamma radiation. Along with these there are different types of decay as well.
Please answer both the parts otherwise I'll downvote.
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 3 images
