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What is the name of the series which contains most of the synthetic and radioactive elements?
All of the actinides are radioactive, and almost all are synthetic.
Is radioactive atoms the same as the sun?
No. The sun is made up of a ball of gases, and the only radioactive gas we know of is Radon. Also, most radioactive elements are man-made.
What is a radioactive in period 6?
A radioactive element in period 6 of the periodic table is Polonium (Po). It is a highly radioactive metal with no stable isotopes. Its most stable isotope, Polonium-210, has a half-life of about 138 days.
Does Barium have isotopes that are all radioactive?
No, Barium has both stable and radioactive isotopes. Out of its 25 known isotopes, only 6 of them are considered radioactive. The most stable isotope of Barium is Barium-138, which is not radioactive.
Are lanthanides radioactive?
Some lanthanides are radioactive, such as promethium. However, most lanthanides found in nature are stable.
What is the name of the series which contains most of the synthetic and radioactive elements?
All of the actinides are radioactive, and almost all are synthetic.
Is cesium radioactive and synthetic?
Some isotopes of cesium are radioactive and synthetic, as indicated in recent news reports about the Japanese nuclear reactor damaged by the recent severe earthquake/tsunami. (The radioactive cesium reported was formed by atomic fission of uranium and/or plutonium in the reactor.) However, most cesium is neither radioactive nor synthetic!
Is xenon radioactive?
None of the isotopes of xenon ordinarily found in nature is radioactive. Like all elements, xenon has synthetic radioactive isotopes.
Is radioactive atoms the same as the sun?
No. The sun is made up of a ball of gases, and the only radioactive gas we know of is Radon. Also, most radioactive elements are man-made.
What is a radioactive in period 6?
A radioactive element in period 6 of the periodic table is Polonium (Po). It is a highly radioactive metal with no stable isotopes. Its most stable isotope, Polonium-210, has a half-life of about 138 days.
Does Barium have isotopes that are all radioactive?
No, Barium has both stable and radioactive isotopes. Out of its 25 known isotopes, only 6 of them are considered radioactive. The most stable isotope of Barium is Barium-138, which is not radioactive.
How many electrons are in a completed valence shell of most second period atoms when they combine with other atoms to become molecules?
Most second period atoms have four valence electrons when they combine with other atoms to form molecules.
Are lanthanides radioactive?
Some lanthanides are radioactive, such as promethium. However, most lanthanides found in nature are stable.
Is copper radioactive?
No isotope of copper ordinarily found in nature is radioactive. Like all elements, synthetic radioactive isotopes of copper exist.
What planets and celestial bodies seem to be radioactive?
Stars seem to be, but they don't have big and/or unstable atoms such as most radioactive elements have. They release sub atomic units when their atoms fuse, along with rays such as gamma rays, which is why they can seem to be similar to other radioactive things. Some planets with atmostpheres that are ionised by ionising rays can also be similar to radioactive things perhaps.
Is neodymium radioactive?
Neodymium is radioactive, though for most practical purposes it can be regarded as stable. 30.4% of neodymium is of two radioactive isotopes, but their half lives are very long, the shorter being 2,290,000,000,000,000 years. Like all other elements, neodymium has synthetic radioactive isotopes.
Is europium radioactive?
Europium is radioactive, though for most practical purposes it can be treated as stable. 52.2% of europium is stable. 47.8%, is radioactive 151Eu, but the half life of this is long, at 5,000,000,000,000,000,000 years. Like all other elements, europium has radioactive synthetic isotopes.
