No, elements with atomic numbers above 90, also known as transuranium elements, are typically not found naturally on Earth in significant quantities. The reason for this is that these elements are highly unstable and undergo radioactive decay, meaning their nuclei break apart over time.
Elements with atomic numbers up to 92 (uranium) do occur naturally and can be found in various minerals, ores, and even in trace amounts in the Earth's crust. However, elements beyond uranium, such as neptunium (atomic number 93) and plutonium (atomic number 94), were first synthesized artificially through nuclear reactions in laboratories.
The transuranium elements, including elements like americium (95) and curium (96), are primarily produced through nuclear reactions in laboratories or nuclear reactors. They have important applications in fields such as nuclear power, research, and medicine. These elements tend to have short half-lives, which further contributes to their scarcity in nature.