atomic number 84
ریشه و کاربرد
ریشه
From the Latin word 'Polonia', meaning 'Poland'.
مثال
- Polonium has an atomic number of 84.
- The atomic number 84 indicates that a polonium atom has 84 protons.
- Polonium is located in group 16 and period 6 of the periodic table due to its atomic number 84.
تعریف انگلیسی
noun
- a radioactive metallic element that is similar to tellurium and bismuth; occurs in uranium ores but can be produced by bombarding bismuth with neutrons in a nuclear reactor