Crack open the science book, the periodic table you learned...

Remember all of the elements you learned about in high school? You many need a refresher.

Scientists have agreed on the discovery of four new elements, completing the seventh line of the periodic table of elements, Science News reported.

The elements don't have names yet, but will appear as number 113, 115, 117 and 118.

They are the first to be added to the table since 2011.

They are all man-made and are temporarily named with the Uu designator.

The permanent names could come from mythology, a mineral, a place or a scientist, The Guardian reported.

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