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- Special Interest
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- AppreciationEducational
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- United States
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- Every February 7
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National Periodic Table Day celebrates the foundational chart of chemical elements every February 7. This day honors the periodic table’s pivotal role in scientific discovery and education. Engage with chemistry, explore its wonders, and appreciate the minds behind this essential tool.
Want to sponsor National Periodic Table Day? Learn how
Expected National Periodic Table Day Deals
While specific 2027 promotions are yet to be announced, National Periodic Table Day often inspires educational institutions and science-focused retailers to offer special programs. Look for discounts on science kits from brands like Thames & Kosmos and KiwiCo, or educational software from providers such as Vernier Software & Technology. Online learning platforms like Coursera and edX may feature free or discounted chemistry courses. Science museums and discovery centers, including the Exploratorium and the Franklin Institute, might host special exhibits or offer reduced admission. We will update this page with confirmed live deals as February 7 approaches.
Platform Guide for National Periodic Table Day
Tag National Today (linkedin.com/company/nationaltoday) and use #PeriodicTableDay. Share insights on the periodic table’s impact on your industry or research.
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Mention @NatlToday and use #PeriodicTableDay. Join discussions about your favorite elements or share interesting facts about chemistry.
Tag @nationaltoday_ and use #PeriodicTableDay. Post visually appealing infographics of elements or short videos of simple chemistry experiments.
National Periodic Table Day Hero
Dmitri Mendeleev
History of National Periodic Table Day
If it wasn’t for the periodic table, we wouldn’t have passed our chemistry exams as easily as we did. Although, come to think of it, if it wasn’t for the blocked chart, we wouldn’t have found chemistry so tough in the first place either! But by the same token, we cannot forget the breakthroughs and advancements that the periodic table has brought to the field of chemistry.
On February 7, 2016, an author, inventor, and chemistry teacher at Jefferson County Public School in Kentucky, Mr. David T. Steineker, founded the National Periodic Table Day to toast the publishing of scientist John Newlands’ periodic table of elements on February 7, 1863. Russian chemist and scientist, who is best remembered for formulating the present-day periodic table in 1869, Dmitri Mendeleev, was also born a day before February 7. Mr. Steineker came up with the idea to give it a day to remember and challenge the discoveries of the periodic table of elements for which more than one scientist has been credited for its inception since the 19th century.
It is unethical to not recognize the first groundwork of the periodic table that was laid out by German chemist Johann Dobereiner back in 1817. Together with J.J. Berzelius, the Swedish chemist, Doberiener discovered the first catalyst by experimenting with hydrogen ignition and potassium powder. He organized elements with similar properties into groups of three, which formed the basis for modifications by other scientists.
Then came John Newlands who was an English chemist. He published the first periodic table in 1863, which organized 56 elements into 11 groups. While Newlands’ periodic table was slightly flawed, he was the first scientist to introduce the ‘Law of Octaves.’ National Periodic Table Day, thus, honors the scientists who created a simplified model that gives us an easy reference and helps chemists anticipate the behavior of elements within a glance.
National Periodic Table Day timeline
An experimental physicist Henry Moseley discovers that each element had a separate proton number, leading to the addition of 4 new chemical elements.
John Dobereiner organizes elements into a triad (groups of three) based on similar properties.
John Newlands is the first scientist to discover that properties of the elements have a pattern to them.
Dmitri Mendeleev publishes the periodic table containing 60 of the 100 elements we know today, arranging them according to their atomic masses.
Scottish chemist William Ramsay discovers four noble gasses (neon, argon, krypton, and xenon) and wins a Nobel prize.
How Businesses Can Celebrate National Periodic Table Day
Local businesses can celebrate National Periodic Table Day by engaging with the scientific community and promoting STEM education. Science museums and discovery centers can host special exhibits or workshops focused on the elements. Educational supply stores can offer discounts on chemistry sets, books, and posters. Tutoring centers might provide free chemistry review sessions, while local libraries can curate displays of science literature. Even coffee shops could feature ‘elemental’ themed drinks, sparking curiosity in a fun, accessible way.
National Periodic Table Day FAQs
When is National Periodic Table Day?
In 2027, National Periodic Table Day falls on Sunday, February 7, making it a perfect day for family-friendly science activities and educational exploration.
How many elements are on the periodic table?
The periodic table currently features 118 recognized elements, with scientists continually researching and potentially synthesizing new, superheavy elements in laboratories.
Who invented the periodic table?
While Dmitri Mendeleev is widely recognized for developing the periodic table in 1869, other scientists like Lothar Meyer also contributed to its conceptualization around the same time, with Mendeleev’s predictive power setting his work apart.
What is the significance of the periodic table?
Beyond being a mere list, the periodic table serves as a fundamental framework in chemistry, enabling the prediction of element behavior, the discovery of new materials, and the understanding of atomic structure, making it indispensable for scientific advancement.
National Periodic Table Day Activities
Play the Periodic Table Day trivia challenge
Read up a bit about the periodic table and play a trivia challenge with friends and family. Ask facts and figures such as elements making up the rust compound, the symbol for potassium, or perhaps the atomic number of argon.
Play a periodic table scrabble game!
Grab a pen and paper, gather your friends, and put a periodic table chart in the middle. Come up with proper English language words out of the symbols of elements and write them down. The one who ends up with the most points wins the game. But how do we lay out the rules for scoring? Of course, the atomic numbers of each element! For example, the word ‘CaSe’ uses elements only and tops up 54 points to your name.
Sing the periodic table song with friends
Have you ever sung the periodic table song? Well, now is the day! It might be irritating and hilarious, but it is surely a memorable way to relive the dreaded chem-exam days!
5 Facts About The Periodic Table That Will Blow Your Mind
There is one missing letter in it
The periodic table has all the letters of the alphabet except the letter J.
Battery polarity was used to weigh atoms
At that time, scientists used batteries to separate all 63 atoms according to their polarities, and then each atom was weighed in separate containers.
Elements are named after various things
Uranium was named after the discovery of Uranus, whereas argon is taken from the Greek word ‘argos’ meaning ‘idle.’
The king of the periodic table is carbon
Carbon is considered the king because it can form four covalent bonds with other elements and with itself.
Francium is the rarest element of earth
There are only a few ounces of francium left on Earth.
Why We Love National Periodic Table Day
Building blocks of chemistry
The periodic table is easily “chemistry’s most important breakthrough.” From providing a molecular understanding of elements that make up the matter to engineering biomaterials and other complex applications, we owe it all to the periodic table.
Chemical synthesis of Taxol compound treats cancer
The rare compound Taxol is found in Pacific yew trees. It has a therapeutic effect on cancer, which is why chemists have found a semisynthetic version of Taxol widely used today to treat cancer.
Liquid crystal displays for flat screens
The reason why we have flat screens for televisions, smartphones, and monitors is because of a molecule called 5CB. It helped us switch to liquid crystal displays from cathode ray tubes.
National Periodic Table Day dates
| Year | Date | Day |
|---|---|---|
| 2027 | February 7 | Sunday |
| 2028 | February 7 | Monday |
| 2029 | February 7 | Wednesday |
| 2030 | February 7 | Thursday |
| 2031 | February 7 | Friday |


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