–Number of neutrons 136 [7] –Number of protons 86 [7] Radius of Atom –Atomic radius 2.20 Å [1] –Covalent radius 1.46 Å [1] Electronegativity (Pauling-scale) Unknown [1] Electron affinity Not stable [1] Ionization energy (kJ mol-1) 1st 2nd 3rd 4th 5th 6th 7th 8th 1037.073...
Mass Number The sum of the number of protons and neutrons of an atomic nucleus. In other words, it's the sum of the number of nucleons in an atom. Relative Atomic Mass The ratio of the average mass per atom of an isotope to 1/12 the mass of a carbon-12 atom. Relative atomic mas...
If the exposure time for the detector is te seconds, the total number of disintegrations of 222Rn during that time will be CaR· 10−6te in number (a Becquerel being 1 disintegration per second). TABLE 3.5. Upper Theoretical Limit and Measured Values of the Response of Some Radiometers ...
The atomic number of radon is 86. The atomic number is equal to the number of protons in an element. Each element has a characteristic number of...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough...
There are many different types of nuclear energy. Radon is a radioactive element (Rn) that is incredibly dangerous. This toxic element has an atomic number of 86 and an atomic weight of 222. Radon is odorless and a colorless gas, but can also be a transparent liquid or a solid. Radon ...
The city of Waukesha was “pleased to report” that their water tested negative for everything but Radium and Gross Alpha. Radium is element number 88 on the periodic table and from the name, you can guess that this element is highly radioactive and can be very harmful to the human body...
What is curium's atomic mass number? What is bohrium's atomic mass number? What is the mass number of an atom with 5 protons and 7 neutrons? What is the mass number for beryllium? What is the mass number of arsenic? What is the mass number for bromine?
indicating collective behaviour of the nucleons. However, the number of observed cases where the correlations are strong enough to induce a static pear-shape is much smaller. Strong evidence for this type of deformation comes from the observation of a particular behaviour of the energy levels for...
numberofdeaths fromothercausesare takenfromthe1990 NationalSafety CouncilReport. INDOORAIRPOLLUTION:RADON •Mostofthecancerrisk resultingfromradonin thehouseholdwater supplyisduetoinhalation oftheradioactiveby- productsthatare producedfromradonthat hasbeenreleasedfrom ...
1. Why is the ionization energy of helium greater than that of the other elements? What are the dangers of radioactive isotopes? Explain why nuclei that contain more than 82 protons are radioactive. Explain why the noble gases tend to be monatomic rather than diatomic. S...