atomic number 91

ریشه

The term 'atomic' refers to atoms, and 'number' refers to a numerical value assigned to each element based on the number of protons in its nucleus. The number 91 is specific to the element being referred to.

مثال

• Protactinium has an atomic number of 91.
• Atomic number 91 corresponds to the element protactinium.
• The atomic number 91 indicates the number of protons in a protactinium atom.