Question

Write the atomic symbol for each situation . (a) 7 protons and 8 neutrons . (b) 11 protons and 13 neutrons . (c) Atomic number of 14 with 15 neutrons . (d) 9 protons and a mass number of 10.

Answer 1

Answer:

(a) rα ˃ rd ˃ rp (b) rα= rp˂ rd `` (c) rα= rd ˃ rd (d) rα=

Explanation:

A proton, a deutron and an α- particle having the same kinetic energy are moving in circular trajectories in

a constant magnetic field. If rp, rd and rα denote respectively the radii of the trajectories of these particles,

then

(a) rα ˃ rd ˃ rp (b) rα= rp˂ rd `` (c) rα= rd ˃ rd (d) rα= rd = rd