Question

A radioactive nuclide that is used to label blood platelets has 49 protons and 62 neutrons. Which is the symbol of this nuclide?

Answer 1

From among the subatomic particles available, we determine which element is presented by using the number of protons. The 49th element in the periodic table is Indium (In). The chemical symbol is In-62. 62 is the number representing the number of neutrons .

Answer: In-62

Answer 2

Answer: The nuclide is $_{49}^{111}\textrm{In}$

Explanation: We are given a radioactive nuclide having 46 protons and 62 neutrons.

In an element,

Atomic number = number of protons = number of electrons

Hence, Atomic number = 49

and, Atomic mass = number of neutrons + number of protons

Atomic mass = 62 + 49 = 111

An element having atomic number 49 is Indium (In).

Representing an element = $_{Z}^{A}\textrm{X}$ where, X = element

A = Atomic mass

Z = Atomic number

Radioactive isotope used to label blood platelets is $_{49}^{111}\textrm{In}$