An atom has a diameter of about 10-8 cm. This nucleus is relatively unstable and it is likely to break into two fragments of around half the mass.
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It was first thought that this was because the nucleus was so big.
. In nature carbon exists as three isotopes two stable nonradioactive. If we had an atom and wished to see the nucleus we would have to magnify it until the whole atom was the size of a large room and then the nucleus would be a bare speck which. Creation of the fission fragments is followed almost instantaneously by emission of a number of neutrons.
These fragments are nuclei found around the middle of the Periodic Table and the probabilistic nature of the break-up leads to several hundred possible combinations. We would like to show you a description here but the site wont allow us. Carbon-12 12 C and carbon-13 13 C and radioactive carbon-14 14 C also known as radiocarbonThe half-life of 14 C the time it takes for half of a given amount of 14 C to decay is about 5730 years so its concentration in the atmosphere might be expected to decrease over thousands of years but 14.
The history of life on Earth traces the processes by which living and fossil organisms evolved from the earliest emergence of life to present day. Earth formed about 45 billion years ago abbreviated as Ga for gigaannum and evidence suggests that life emerged prior to 37 Ga. The nucleus has a diameter of about 10-13 cm.
But no the nucleus is very small. Although there is some evidence of life as early as 41 to 428 Ga it remains controversial due.
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