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What is element with atomic number 87?
Francium is a non meta element. Atomic number of it is 87. It is unstable.
What element has the atomic number of 202?
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.
What does the chemical symbol rg mean?
Rg stands for the element, Roentgenium, atomic number 111.
What element is may?
The element May (Meitnerium) is a synthetic element with the atomic number 109. It is a radioactive element and is produced in nuclear reactors by bombarding lighter elements with atomic particles. May is a highly unstable element with a very short half-life.
In the periodic table which element has a mass number of 108?
The element with a mass number of 108 is hassium. It is a synthetic element with the symbol Hs and atomic number 108. It is a highly unstable element that is created in laboratories through nuclear reactions.
Atomic number 148?
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.
What does Uuh stand for in the periodic table?
The symbol Uuh in the periodic table stands for Ununhexium, which is the temporary name given to the element with atomic number 116. It is a synthetic element that has not been observed in nature and is highly unstable.
When an unstable isotope breaks down but doesn't change to another element the atomic number always?
The atomic number is unchanged.
The largest atomic mass?
The element with the largest atomic mass is oganesson, which has an atomic number of 118 and a standard atomic weight of approximately 294. This synthetic element is highly unstable and has a very short half-life, making it difficult to study.
Heaviest element that is highly radioactive?
The heaviest element that is highly radioactive is Ununoctium, which has an atomic number of 118.
What is the 111th element?
The 111th element is Roentgenium, which has the symbol Rg and the atomic number 111. It is a synthetic element that was first synthesized in 1994 by a team of scientists in Germany. Roentgenium is a highly unstable and radioactive element with a very short half-life.
How do you get the number of protons electrons and neutrons from the atomic mass number and atomic number?
Number of protons = atomic number Number of neutrons = Atomic Mass (rounded to the nearest whole number) minus the atomic number Number of electrons in a stable element = number of protons Number of electrons in an unstable element = atomic number minus the charge
