Can you name everything from Ac to Zr? Test your knowledge of the periodic table and see if you can top the leaderboard ...

By Brian Mastroianni December 2, 2016 / 1:36 PM EST / CBS News It’s now time to say hello, officially, to the four new additions to the Periodic Table of Elements.

The periodic table just got bigger. Four new elements have been recognized by the International Union of Pure and Applied Chemistry, which is the U.S.-based world authority on chemistry.

Four other super-heavy elements — 113, 115, 117 and 118 — have the temporary names of ununtrium, ununpentium, ununseptium, and ununoctium, and are waiting for their permanent monikers.

The new superheavy, radioactive elements were actually added to the periodic table late last year and given these temporary and unremarkable names: ununtrium, ununpentium, ununseptium and ununoctoium.

Home Science Features How new periodic table elements get their names Say hello to the chemistry chart's newest additions: numbers 114 and 116, flerovium and livermorium ...

The periodic table is getting a little bigger after scientists added the names of four new elements, completing the seventh row of the chart. The options could have included mythological ...

The elements, discovered by researchers from Japan, Russia, and the United States, are known by their atomic numbers of 113, 115, 117, and 118. They will be given permanent names soon, according ...

Chemistry’s highest gatekeepers have accepted the newly proposed names for elements 113, 115, 117 and 118. Please welcome to the periodic table: nihonium, moscovium, tennessine and oganesson.

In this periodic table of elements quiz, you have 10 minutes to name as many elements as you can, given only their symbol, atomic weight and the broad group they live in.