Yttrium-89
eNpdUEFugzAQ/MocW4kiUAqBYz7QUy8cHXsplgyL7CUpv+8SiCL1sivvzOyO58vIEk3AKhL9MuLt1Hbv8AmWx5kTOXAPGQjJTz9Bm5irNp9YeKYMTdvl+FZ85CRPNBrn+aAkmEhomi7DffB2wGB0pDX0H8H3tO0vizqvT3BmTRnM5NCWG93L8J9ZNXlVPog5LiE8nLGWiNc51etjpJhUe6PngptiuiFQSiozE8oKAy9RT9KvpVnQnLv96LnNmx3b3RTHvP7Mi0O0f9rx6CczCRxZs2oGjnClwPc9sj0NjWgLlAJZiTzBmlkzJwi/TKuxtIHyB/dqiBs=