Question

C-14 and N-14 have same mass number as 14. Can you place them at same position in modern periodic table?​

Answer 1

Answer:

Different isotopes of the same element cannot have the same mass number, but isotopes of different elements often do have the same mass number, e.g., carbon-14 (6 protons and 8 neutrons) and nitrogen-14 (7 protons and 7 neutrons). ..

Explanation:

Answer 2

Carbon comes before nitrogen in the periodic table. They do not occupy the same position.

• In the Periodic Table, the different elements are arranged according to their increasing order of atomic number. This obeys the Modern Periodic Law.
• The law states that the physical and chemical properties of elements are periodic functions of their atomic number.
• The atomic number of carbon (C) is 6, while that of nitrogen (N) is 7. Hence, though both their mass numbers are 14, carbon lies in the 14th group and nitrogen lies in the 15th group of the Periodic Table.