Db
10
9.6
A man-made radioactive metal with atomic number 105
- noun
- Specialized
:
Db
Synonyms
9.9
A radioactive chemical element made in laboratories with atomic number 105
is the two-letter chemical symbol used to represent that element in writing
9.8
A man-made chemical element made in labs with number 105 called dubnium
is the two-letter symbol used to write the element's name
8.5
An element called dubnium with symbol Db and atomic number 105
is the two-letter symbol used to represent this element in text
9.9
An old name for element 105 that is now called dubnium
is the two-letter chemical symbol now used to represent the element
Surface Forms
Etymology
Db is the chemical symbol for the element dubnium. The name comes from the Russian town Dubna, where scientists first made the element, so thinking of Db as a short form of 'Dubna' helps you remember why the symbol is used.