Definitions
Example Sentences
"Ytterbium, with atomic number 68, is a rare earth element."
"The atomic number 68 is used to determine the position of ytterbium in the periodic table."
"The electronic configuration of atomic number 68 is [Xe] 4f14 6s2."
"Scientists have studied the properties and behavior of atomic number 68 atoms."
"The mass of an atomic number 68 atom is determined by its protons and neutrons."
