Knowledge and Skills Statement
Periodic trends include atomic radius, ionization energy, electron affinity, electronegativity, valency, and metallic character. The image below provides a summary of the trends that are seen when analyzing the periodic table.
Research
Takahara, Wataru. "Melting Points and Chemical Bonding Properties of 3d Transition Metal Elements." IOP Conference Series: Materials Science and Engineering 61, no. 1 (2014). https://doi.org/10.1088/1757-899X/61/1/012029
Summary: The melting points of 3d transition metal elements show an unusual local minimal peak at manganese across Period 4 in the periodic table. The chemical bonding properties of scandium, titanium, vanadium, chromium, manganese, iron, cobalt, nickel and copper are investigated. The melting points are found to correlate with the chemical bonding nature of the element.