Question

By which metal did univers and galaxy made

Answer 1

It depends most of the galaxies and nebulae are gases dust which then clump up due to gravitational field and become a giant structure. The elements in them vary as there are many reaction carrying out there for eg fusion reaction takes place which fuses primary hydrogen (element found in large amount in the gases and clouds of galaxies), into helium lastly fusing it into the iron.. your question can only be specifically answered thorough higher observation and samples from other planets and their clusters..