268
The atomic mass of dubnium (Db) is approximately 268. It is a synthetic element with an atomic number of 105.
Dubnium's mass number is about 262, because it is the atomic mass of the closest stable isotope.
The chemical symbol for dubnium is Db. It is a synthetic element with atomic number 105.
Dubnium atomic number 105
Db on the periodic table stands for Dubnium. It is a synthetic element with the atomic number 105 and is part of the actinide series. Dubnium is highly radioactive and is produced artificially in laboratory settings.
The atomic mass of dubnium (Db) is approximately 268. It is a synthetic element with an atomic number of 105.
Dubnium, symbol Db, has an atomic number of 105 and an atomic weight/mass of 262.
Dubnium's mass number is about 262, because it is the atomic mass of the closest stable isotope.
Number of neutrons = Atomic mass of an isotope - Atomic number of the element The atomic number of dubnium is 105; dubnium has many isotopes and of course each idotope has a different number of neutrons - dubnium has now 13 isotopes and 1 isomer.
The atomic number of dubnium is 105.
The atomic number of dubnium is 105. It is a synthetic element with the symbol Db.
The atomic number of dubnium is 105.
The chemical symbol for dubnium is Db. It is a synthetic element with atomic number 105.
Dubnium has an atomic number of 105, group 5, period 7
Dubnium atomic number 105
Unp (now dubnium) has the atomic number 105.
Dubnium is an artificial chemical element, atomic number 105, radioactive, very probably a solid metal, group 5 in the periodic table of elements.