The most common isotope of plutonium is Pu-239. Ejecting four protons and four neutrons would reduce the atomic number from 94 to 90 and the mass number from 239 to 231. Element #90 is Thorium, so the answer would be Thorium-231.
However, that is not an actual decay mode for Pu-239. Pu-239 decays by emitting an alpha particle (two protons and two neutrons) to Uranium-235. U-235 can then further decay by emitting another alpha particle to form Th-231.
678
Platinum is a metal element. atomic number of it is 78.
All neutrons (of all elements) are located in the nucleus (as all ptotons are)
The element with 135 neutrons in its nucleus is Xenon, which has an atomic number of 54.
The atomic no of Plutonium is 94 so it has 94 protones and 239-94=145 neutrons in its nucleus.
The electron configuration of plutonium is [Rn]5f67s2.
Protons and neutrons are normally bound within the nucleus by the strong nuclear force. However, they can be ejected from the nucleus in processes like radioactive decay or nuclear fission.
All elements have neutrons and protons within the nucleus.
Neutrons are found in the atomic nucleus of an element, along with protons. They have no electrical charge and help stabilize the nucleus. The number of neutrons in an element can vary, leading to different isotopes.
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The smallest unit that shows the properties of an element is an atom, and yes, an atom has protons and neutrons in the nucleus.
Ruthenium typically has 102 neutrons in its nucleus.