atomic number 75
ریشه و کاربرد
ریشه
From the Latin word 'atomus' meaning 'indivisible' and the English word 'number'.
مثال
- The atomic number 75 corresponds to the element rhenium.
- Rhenium has an atomic number of 75.
- The atomic number 75 indicates the number of protons in a rhenium atom.
تعریف انگلیسی
noun
- a rare heavy polyvalent metallic element that resembles manganese chemically and is used in some alloys; is obtained as a by-product in refining molybdenum