Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to study the chemical properties of transition metals [title] Locate the transition metals on the periodic table. [step] The transition metals are a set of 38 elements located in groups three through twelve (sometimes written as group iia and group iib) on the periodic table. These metals are further subdivided into three groups based on the row of the periodic table they are located.

Ending1: [title] Study the periodic table in the sciences. [step] In most scientific and academic sciences, there are 16 distinct types of metals that integrate at the periodic table together. Ending2: While there aren't any periodic tables here, finding transition metals on the periodic table makes it easier and quicker to study. [title] Look for indications of imbalance in a row. Ending3: [substeps] The most commonly studied transition metals are the first row transition metals. They begin on the left side with scandium and end on the right side with zinc. Ending4: [substeps] The periodic table displays the metals it symbolizes. Making your own use of the periodic table can be tricky, as well as challenging.

Answer format: ending1/ending2/ending3/ending4