Siderophile Elements (Iron-Loving): Elements like iron, nickel, and platinum prefer bonding with metallic iron and are more abundant in the Earth’s core than in the crust. In this article, we will explore the 10 most abundant elements in the Earth’s crust, as well as discuss some emerging trends related to these elements. 1. Oxygen is the most abundant element in the Earth’s crust, making up approximately 46.6% of its mass. The most abundant element on Earth, by mass, is iron. While oxygen reigns supreme in the Earth’s crust, iron constitutes the vast majority of the Earth’s core, making it the champion in terms of overall elemental abundance. The rarest elements in the crust are not the heaviest, but are rather the siderophile elements (iron-loving) in the Goldschmidt classification of elements. These have been depleted by being relocated deeper into the Earth's core; their abundance in meteoroids is higher.
