These elements (neptunium and heavier) are called transuranic elements or trans-uranium elements. They could also properly be called artificial and radioactive.
*Both plutonium and neptunium, first known through synthesis, have been found to occur naturally in trace amounts, along with americium, curium, berkelium and californium. These occur through a natural version of the synthesis process, within quantities of uranium ore.
There are no stable nuclides for elements with atomic numbers greater than 83. Nuclides with atomic numbers above 83 are radioactive and undergo decay processes to become more stable isotopes.
The element with atomic number 148 does not exist in nature as elements with atomic numbers above 92 are synthetic and have been created in laboratories. These elements are usually highly unstable and decay quickly.
The number above an element's symbol in the periodic table represents its atomic number, which indicates the number of protons in the nucleus of an atom of that element. Atomic number determines the element's unique identity and its placement in the periodic table.
Look it up in "Periodic Table of elements" You can find the number of a particular element by looking at the Periodic Table; you can also do this by counting the number of protons in the nucleus.
Atomic numbers increase from left to right across a period on the periodic table. This is because each element in a period has one more proton in its nucleus compared to the element before it. Atomic masses generally increase from left to right as well, but there may be deviations due to isotopes or other factors. Within a group or column, atomic numbers and atomic masses increase from top to bottom as each successive element has more electrons and neutrons than the one above it.
Elements with a higher atomic number than uranium belong to the transuranium elements, which are all man-made and generally unstable due to their high atomic numbers. These elements typically undergo radioactive decay, leading to the formation of lighter elements.
There are no stable nuclides for elements with atomic numbers greater than 83. Nuclides with atomic numbers above 83 are radioactive and undergo decay processes to become more stable isotopes.
The element with atomic number 148 does not exist in nature as elements with atomic numbers above 92 are synthetic and have been created in laboratories. These elements are usually highly unstable and decay quickly.
In the field of chemistry, elements with atomic numbers higher than 104 are known as transuranium elements and most of them do not have permanent names yet. These elements are typically synthesized in laboratories and are highly unstable, making it challenging to study and name them definitively. Instead, they are often assigned temporary systematic names based on their atomic numbers until further research can confirm their properties and characteristics.
IDK whats comin next... So sorry I don't know
all of the above
There is no standard position. In the online version produced by the Royal Society of Chemistry, it is underneath the elements' symbols. The Wikipedia table shows atomic numbers above the symbols. So take your pick!
Synthetic elements are found in the group of transuranium elements, which are elements with atomic numbers higher than uranium (92) on the periodic table. These elements are artificially created in a laboratory through nuclear reactions and have unstable nuclei.
the electrons add to the weight ALL THE ABOVE
The number above an element's symbol in the periodic table represents its atomic number, which indicates the number of protons in the nucleus of an atom of that element. Atomic number determines the element's unique identity and its placement in the periodic table.
The atomic number of an element is the number of protons in the nucleus of an atom of that element. You can find the atomic number of an element on the periodic table, as it is usually listed above the element's symbol.
For now I can't recall, except that this ?'n HAS a Valid Answer ... Help Call.