The __ is a chart created the elements according to repeated changes of the properties. mass number periodic table isotope metalloid list

## Step 1<br />The question is asking for the name of a chart that was created by scientists to organize elements based on their recurring properties. This chart is known as the periodic table.<br /><br />## Step 2<br />The periodic table is a tabular arrangement of the chemical elements, ordered by their atomic number, electron configuration, and recurring chemical properties. It was created by Dmitri Mendeleev in 1869.<br /><br />## Step 3<br />The other options provided, such as mass number, isotope, and metalloid list, are not charts but rather terms related to atomic structure and properties.