Element 118, Oganesson (Og), belongs to the noble gases family, also known as group 18 on the Periodic Table. These elements are characterized by their stable electron configurations and low reactivity.
There isn't an element with the atomic number 202 because the known elements in the periodic table have atomic numbers up to 118, which is Oganesson. Any element with an atomic number higher than 118 would be highly unstable and would not exist naturally.
There are 117 elements in the periodic table. Elements 1-116 and element 118. IMPROVED ANSWER --------------------------------------------------------------------------------------- 118, but element 117 is so unstable they do not officially count it as being an element on the periodic table yet.
Who told you that chromium had 118 electrons - there are only 24. Check it out with Wikipedia. There you find the element that really has 118 electrons. Happy hunting. (PS - Hint - there is a very close correlation between the number of electrons and the atomic number of the element.)
Ununoctium. (Uuo)
Ununoctium has 118 protons, 118 electrons and 176 neutrons.
Element 118 is a noble gas, which means it would be largely unreactive. Only a few atoms of this gas have been synthesized.
There isn't an element with the atomic number 202 because the known elements in the periodic table have atomic numbers up to 118, which is Oganesson. Any element with an atomic number higher than 118 would be highly unstable and would not exist naturally.
There are 117 elements in the periodic table. Elements 1-116 and element 118. IMPROVED ANSWER --------------------------------------------------------------------------------------- 118, but element 117 is so unstable they do not officially count it as being an element on the periodic table yet.
There are 118 neutrons in the element gold.
118 will be its atomic number.
Who told you that chromium had 118 electrons - there are only 24. Check it out with Wikipedia. There you find the element that really has 118 electrons. Happy hunting. (PS - Hint - there is a very close correlation between the number of electrons and the atomic number of the element.)
If the atomic number is 118, the number of protons is 118. Atomic number is the number of protons in the nucleus of an atom. The elements are arranged in increasing order of atomic number. All of the atoms of an individual element have the same atomic number. Atomic number identifies an element.
In the periodic table, 118 refers to the atomic number of an element, which indicates the number of protons in the nucleus of an atom. "E" typically stands for an element symbol, but as of my knowledge cutoff in September 2021, element 118 is Oganesson (Og), a synthetic superheavy element with an extremely short half-life.
Element 118 (Oganesson) is a superheavy element that is highly unstable and decays very quickly, within a fraction of a millisecond, into element 116 (Livermorium) through alpha decay.
118 elements
Ununoctium. (Uuo)
This element is ununoctium - atomic number 118.