Mass Spectra

The nucleus of a ²³Na atom contains

The mass spectrum for a sample of a metal is shown below.

The relative atomic mass of the metal is

Chlorine has two isotopes with relative isotopic mass 35 and 37. Four m/z values are given below. Which will occur in a mass spectrum of chlorine gas, Cl₂, from an ion with a single positive charge?

Bromine has two isotopes with relative isotopic masses 79 and 81. Which of the following values for mass/charge ratio could correspond to a peak in the mass spectrum of bromine, Br₂? You should assume the ions detected have a single positive charge.

Which of these statements is incorrect?

In which of the following series does the melting temperature of the element increase from left to right?

The correct sequence for the processes that occur in a mass spectrometer is

Which of the following ions would be deflected most in a mass spectrometer?

The chemical properties of an element are determined by its

In a mass spectrometer, positive ions are accelerated by

Bromine has two isotopes with relative isotopic masses 79 and 81. Which of the following values for mass/charge ratio could correspond to a peak in the mass spectrum of bromine, Br₂? You should assume the ions detected have a single positive charge.

Which pair of ions is isoelectronic?