Elements and Compounds Formation

A pure substance made of atoms that are all of the same type

In nuclear reactions in stars and supernovae

Reactions fusing elemental hydrogen into helium

<p>Energized particles such as neutrinos and protons</p> Signup and view all the answers

<p>To screen out harmful radiation</p> Signup and view all the answers

<p>The star begins to expand into a red giant</p> Signup and view all the answers

<p>Elements heavier than iron, like uranium and gold</p> Signup and view all the answers

<p>To become familiar with the names and symbols of chemical elements</p> Signup and view all the answers

<p>They are receptive to new ideas and suggestions</p> Signup and view all the answers

<p>It is utilized in party balloons that float in air</p> Signup and view all the answers