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Why must products of nuclear fission be stored safely?
Because they are mostly very radioactive and many have long halflives
Does radiation contamination fade over time?
Sure but it depends on the radioactive elements halflives
Could there be a more elements that are unknown in the periodic table?
sure, but all will be radioactive with short halflives.
Why can you only get certain amounts of isotopes such as hydrogen having none or 1 or 2 neutrons and not 3 or above?
heavier isotopes can be produces but their halflives are in the microsecond or shorter range.
How many student passed rtet exam 2011 by categary?
in sc26354 passed
How many years have passed since the village of oraibi was founded?
962 years passed
How many years passed from the reign of Vespasian to the reign of Gratian?
1 year passed
How many days have passed in 2009?
As of June 16th 2009, 166 days have passed.
How many years had passed from BC?
What is the half life of ozone?
Five isotopes of zinc are stable; two have halflives of just over 240 days and just over 46 hours. 19 others are know; all have halflives of less than an hour and some less than a second. See the related links for a chart with all of the isotopes and their exact halflives as known.
How many years have passed since the Hopi village of Oraibi was founded?
962 years passed
Does nuclear radiation go away?
No, it doesn't.Wrong, it does. There are 2 types of nuclear radiation: prompt & decay.Prompt nuclear radiation occurs for a period of time while the reaction that generates it is happening. Examples are the flash of neutrons, light, x-rays, etc. when a nuclear bomb explodes as well as the sustained neutron flux as a nuclear reactor is in operation. When the reaction stops, prompt nuclear radiation goes away.Decay nuclear radiation occurs as radioactive isotopes decay to different isotopes. As the decay happens (which is a probabilistic process) the radioactive isotope is consumed. This follows an exponential function with one half of the current amount of the radioactive isotope consumed in each period of time called a halflife. While there will always be a tiny residue of the original radioactive isotope, for practical purposes it is considered to be negligible after 5 halflives have passed. When 5 halflives of the radioactive isotope decaying have passed, decay nuclear radiation is considered to have gone away for practical purposes.
