Question

An electron map resembles which of the following options?

(a) Electron spectrum

(b) Geographical contour map

(c) Diffraction spectrum

(d) Resolution electron map

The question was posed to me in unit test.

Origin of the question is Intensities topic in section X-Ray Diffraction of Solid State Chemistry

Answer 1

The correct choice is (b) Geographical contour map

For explanation: An electron map resembles a geographical contour map. The contours represent lines of constant electron density throughout the structure. Peaks of the electron density maxima may be distinguished clearly and these correspond to the atoms, the coordinates of the atoms in the unit cell are given by the coordinates of the peak maxima.