FIGURE 6.14 THE PERIODIC TABLE OF THE ELEMENTS HYDROGEN YOU CAN SPOT AN OUTDATED SCIENCE TEXTBOOK BY CHECKING THE BOTTOM OF THE PERIODIC TABLE FOR MISSING ELEMENTS. FOR EXAMPLE, MINE WAS PUBLISHED HALF AN HOUR AFTER THE BIG BANG.
https://toot.me.uk/system/media_attachments/files/116/047/242/428/578/000/original/7acb2c84a5b4c02f.png