atomic number 78
ریشه و کاربرد
ریشه
From the Latin word 'atomus' meaning 'indivisible' and the English word 'number'.
مثال
- The atomic number 78 corresponds to the element platinum.
- Platinum has an atomic number of 78.
- The atomic number 78 indicates the number of protons in a platinum atom.
تعریف انگلیسی
noun
- a heavy precious metallic element; grey-white and resistant to corroding; occurs in some nickel and copper ores and is also found native in some deposits