0
117. For chemicals that are unnamed, use the prefic after the to "un-"s to figure out the last digit. sept-=7. The two "un-"s both indicate one. So, one one seven, or 117
actually, 117 is the atomic number, the mass is approx 292
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What is the atomic number of ununseptium?
Ununseptium, with the chemical symbol Uus, has the atomic number 117.
What is the difference between atomic mass and atomic mass unit?
The atomic mass unit is used to express the measure of the atomic mass.
What is the atomic mass of magnessium?
The atomic mass of magnesium is approximately 24.305 atomic mass units (amu).
What are the uses of ununseptium?
Ununseptium hasn't practical uses.
The atomic mass of iodine is less than the atomic mass?
The atomic mass of iodine is less than the atomic mass of all elements with greater atomic number.
What is the atomic mass of the Unnilseptium?
Ununseptium: 294
What element has greatest atomic mass?
Ununseptium and Ununoctium are currently tied.
What is the element with the heaviest atomic mass?
Ununseptium and Ununoctium are currently tied.
What is the atomic number of ununseptium?
Ununseptium, with the chemical symbol Uus, has the atomic number 117.
What is ununseptium?
Ununseptium is the systematic element name for the chemical element with the atomic number 117, Chemical symbol Uus.
What are the halogens from the lowest to highest atomic number?
Fluorine, chlorine, bromine, iodine, astatine (ununseptium?)
What are the properties for ununseptium?
Ununseptium is an artificial chemical element, radioactive, unstable, atomic number 117, having two isotopes; it is supposed that Uus is a halogen but with only six atoms obtained is difficult to be sure now.
What is bigger the atomic mass or atomic number?
Atomic no.=no. of protons Atomic mass=no. of protons+no. of neutrons Hence, atomic mass is greater
What is the atomic mass-?
The atomic mass is the mass of a molecule, atomic particle or sub-atomic particle.
How is ununseptium used?
Ununseptium hasn't uses.
Is ununseptium a solid?
Ununseptium is considered a solid.
When was Ununseptium created?
Ununseptium was created in 2010.
