Atomic Structure of Lithium Quiz

The atomic number is the number of protons in the nucleus of an atom.

Number of neutrons = Mass number (A) - Atomic number (Z)

Isotopes are atoms with the same number of protons but different numbers of neutrons.

<p>Relative isotopic mass is the mass of one isotope compared to one twelfth of the mass of carbon-12.</p> Signup and view all the answers

<p>The mass spectrometer can determine all the isotopes present in a sample of an element.</p> Signup and view all the answers

<p>Relative atomic mass is the average mass of one atom compared to one twelfth of the mass of carbon-12.</p> Signup and view all the answers

<p>R.A.M = Σ (isotopic mass x % abundance) / 100</p> Signup and view all the answers

<p>24Mg2+ with a 2+ charge would have a m/z of 12.</p> Signup and view all the answers

<p>To identify elements on other planets by analyzing their isotopic composition.</p> Signup and view all the answers

<p>To identify chemicals in the blood and detect breakdown products from drugs in the body.</p> Signup and view all the answers

<p>It is used to identify molecules in samples with potential biological activity.</p> Signup and view all the answers

<p>To determine the age of fossils or human remains.</p> Signup and view all the answers