'When a nucleus is split, it's called fission; when 2 nuclei combine, it's called this'
fusion
UP & ATOM: When a nucleus is split, its called fission; when 2 nuclei combine, its called this
When a nucleus is split, it's called fission; when 2 nuclei combine, it's called this
When a nucleus is split, it's called fission; when 2 nuclei combine, it's called this
UP & ATOM
fusion
UP & ATOM