Question

What are the ordinate and the abscissa of an ordinary atomic mass spectrum?

Short answer

The ions relative abundance or intensities are represented on the $y-axis$(ordinate), while the mass to charge ratio is represented in the$xaxis$(abscissa)

Step-by-step solution

Step 1. Given information

A mass spectrometer uses a high-energy electron beam to ionise atoms and molecules, then deflects the ions through a magnetic field based on their mass-to-charge ratios. The relative abundances of the ions are shown on the y-axis, and their $\frac{m}{z}$ratios are shown on the x-axis in the mass spectrum of a sample.

Step 2. 

Mass spectroscopy is used to determine a molecule's elemental makeup, particle masses, and chemical structure. Mass spectroscopy is a technique for generating charged molecules by ionising chemical compounds.

Step 3. ordinates and abscissa

The mass spectra of the peptide molecule are represented below;

The ions' relative abundance or intensities are represented on the $y-axis$axis (ordinate), while the fnass to charge ratio is represented in the$x-axis$(abscissa)