Thread:61Storm/@comment-29709319-20181110010804/@comment-29709319-20190207020916

February 7: National Periodic Table Day, National Send a Card to a Friend Day, and National Fettuccine Alfredo Day.

⚖️National Periodic Table Day! To understand the development of the periodic table, we first must understand the discovery of elements and their effect on science. Elements known to ancient man were few. Gold, silver, copper, iron, lead, tin, mercury, sulfur and carbon were the earliest known elements. These were all known prior to the 1st century A.D. Over time, arsenic, antimony, phosphorus and zinc were discovered. By 1809 there were 47 discovered elements. One of the earliest attempts to organize the elements was by Johann Döbereiner in 1817. He organized elements into groups of three, or triads, based on similar qualities. On February 7, 1863, English chemist John Newlands published one of the first table of elements, which divided the known 56 elements into 11 groups based on the “Law of Octaves.” This suggested that any one element will have similar properties to elements eight places before and behind it on the table. Arranging the elements according to increasing atomic weight, Newlands was one of the first scientists to detect a pattern to the properties of elements. As a result, his table left room for new discoveries, predicting future discovered elements would complete the table. Newlands correctly predicted the discovery of Germanium. While parts of Newlands periodic table had flaws, so did other later proposed tables. In 1869 chemist Dimitri Mendeleev published a paper developing a periodic table arranging the elements also based on atomic mass. By this time only 60 of the over 100 elements we know today were discovered. There were also some inaccuracies attributed to some of those elements. While Mendeleev corrected some of these inaccuracies, he made assumptions about others causing elements to be placed incorrectly on the table. Like Newlands, Mendeleev predicted discoveries as well. He correctly predicted the properties of five elements and their compounds. The discoveries throughout Scot William Ramsay’s career from 1892 to 1910, along with John William Strutt, Morris Travers and Frederick Soddy led to the identification of the noble gasses. Ramsay was awarded a Nobel Prize in 1904 for discovering five elements. Henry Moseley, an experimental physicist, contributed to the development of the modern periodic table when he discovered in 1913 that each element has a specific number of protons. As a result, four new chemical elements were later found, though not during his lifetime. Since the early 20th century there have been very few significant changes to the periodic table. The 21st century is still young, though and some researchers have suggested new approaches to the periodic table while maintaining its integrity as one of the most valuable tools in the science of chemistry. The current table tallies a total of 118 elements. National Periodic Table Day was founded on February 7, 2016, with the goal of promoting the challenges that were overcome to develop the modern periodic table. Mr. David T. Steineker, author, inventor, and chemistry teacher at Jefferson County Public Schools in Kentucky is inspired by those challenges and took the initiative to celebrate National Periodic Table Day based upon John Newlands first table of the elements published on February 7, 1863.

💳National Send A Card To A Friend Day is the day to send our friends a card and let them know that we are thinking of them and of the fond memories of times shared. With the technology we have, we can also send Ecards. You can buy cards at a store, or you can make them yourself. Whichever way you choose, set aside a few minutes to write a short note or a long note in a card and send one to a friend or friends.

🍜National Fettuccine Alfredo Day! Alfredo di Lelio, an Italian restaurateur, created Fettuccine Alfredo in 1908. After his wife had given birth to their first son that year, she did not have an appetite. To help encourage her to eat, he created a dish of noodles, cheese and butter. She liked the dish so much that she thought he should put it on the menu at his small restaurant in Rome. Everyone around the world has been enjoying this dish ever since. Today it is one of the most popular pasta dishes in America.

Warning tomorrow is a state theme day.

The periodic table is above my pay grade. If after reading about it I don't understand it. I send my friends gifts😂! I love good fettuccine alfredo with or without shrimp🍤!

Bixby is so cute, can I have him😂?!

The only pics of the 9 right now are the delivery room pics. It was a nightmare of a delivery. Thelma had to have c-section preformed and medical care. (My mistake the puppies were born on Sunday.) And my niece like to never found a vet that was actually on emergency call. It was a close call for all. But everything seems to be better now. Both mommas love their new additions.

Sending warm hugs!🐶🐶💕❄️☃️💕