Question

Consider the following atoms in which X represents the chemical symbol of the element: ($4.4$$,4.5$)

${}_8{}^{16}X,{}_9{}^{16}X,{}_{10}{}^{18}X,{}_8{}^{17}X,{}_8{}^{18}X$

a. What atoms have the same number of protons?

b. Which atoms are isotopes? Of what element?

c. Which atoms have the same mass number?

d. What atoms have the same number of neutrons?

Short answer

(a) Atoms having same no. of protons are, ${}_8{}^{16}X,{}_8{}^{17}X,{}_8{}^{18}X$

(b) Atoms which are isotopes are, ${}_8{}^{16}X,{}_8{}^{17}X,{}_8{}^{18}X$and element is oxygen.

(c) Atoms which have same mass no. are,

Step-by-step solution

Part (a) Step 1: Given information

We need to find out the atoms which have same no. of protons