They are:
It would be the 10th element in the periodic table, Neon.
The notation "5s² 4d¹⁰ 5p³" represents the electron configuration of an element in the periodic table. It indicates that the element has two electrons in the 5s subshell, ten electrons in the 4d subshell, and three electrons in the 5p subshell. This configuration corresponds to the element Antimony (Sb), which is found in group 15 of the periodic table and has an atomic number of 51.
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The periodic table is unlikely to change significantly in the next ten years as the fundamental properties of elements remain constant. However, new elements may be discovered and added to the table if they meet the criteria set by the International Union of Pure and Applied Chemistry (IUPAC).
all elements after uranium (atomic number 92) are radioactive.
It would be the 10th element in the periodic table, Neon.
Refer to the related link.
Helium (element 2 He) and Neon (element 10 Ne) are unlikely to form molecules because they are noble gasses and thus unreactive.
There are 92 naturally occurring elements in the periodic table of the elements. Each element differs from the next by the number of protons within its nucleus. Hydrogen has one proton. Helium as two. Next comes Lithium, Beryllium, Boron, Carbon, Nitrogen, Oxygen, Flourine, and Neon, rounding out the first ten. Google "periodic table" for a complete list.
The notation "5s² 4d¹⁰ 5p³" represents the electron configuration of an element in the periodic table. It indicates that the element has two electrons in the 5s subshell, ten electrons in the 4d subshell, and three electrons in the 5p subshell. This configuration corresponds to the element Antimony (Sb), which is found in group 15 of the periodic table and has an atomic number of 51.
If "number ten" refers to atomic number, then the answer is Neon.
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The periodic table is unlikely to change significantly in the next ten years as the fundamental properties of elements remain constant. However, new elements may be discovered and added to the table if they meet the criteria set by the International Union of Pure and Applied Chemistry (IUPAC).
The number of valence electrons in any element can be found from the element's group number on the periodic table. Phosphorus has a group number of 5 (15 in some periodic tables, in which case the valence is the group number minus ten). Thus, phosphorus has 5 valence electrons.
All except neon and helium
The last metal in the periodic table that is available in nature is uranium with atomic number 92.The newly discovered element, that doesn't have an official name yet, so scientists are calling it ununpentium, based on the Latin and Greek words for its atomic number, is having atomic number 115. The man-made 115 was first created by Russian scientists in Dubna about ten years ago.
all elements after uranium (atomic number 92) are radioactive.