Periodic Table Explained: Name Origin

It took scientists hundreds of years to discover the 92 different types of atoms that exist. Each type forms a different substance because a substance made from only one type of atom is called an element. There are 92 elements in the universe. The scientists made a list using the weights of their atoms starting with the lightest hydrogen to the heaviest uranium they gave each element its own number which shows its place on this list the site is called that is its atomic number so the hydrogen should have an atomic number of one and uranium an atomic number of 92 scientists I noticed something in the list of elements, the first two on the list, hydrogen and helium, are light, colorless gases, although they look similar.

When we place a lit match on hydrogen, it explodes, but when we light helium, it simply extinguishes the flame. Let's say hydrogen is chemically reactive while helium is chemically non-reactive or inert after helium there is an abrupt change to lithium which is a soft shiny metal, beryllium is also a shiny metal but a little harder than boron. is a brown powder and then further to the right the elements become non-metals they are often gases until we get to neon, a colorless gas that does not react chemically or is inert like helium, then another big change to sodium, which is a soft and shiny metal, followed by magnesium and aluminum, which are harder metals.

You know, metals are usually shiny and malleable solids that can conduct electricity, after these three metals comes silicon, which is a semimetal and not so conductive, further to the right there are four non-metals that do not conduct electricity at all , phosphorus, sulfur, which are brittle solids, and chlorine and argon, which are gases, hmm, argon is another inert. colorless gas and then another abrupt change to the soft, shiny metal potassium the next 12 elements are metals through gallium, semimetals, germanium and arsenic, followed by nonmetals, selenium, bromine and krypton. Crypton is another colorless inert gas, so can you guess what type of element Rubidium is a soft, shiny metal, of course this is getting repetitive.

Another word for repetitive is

periodic

. The Yanik chart has

periodic

in its

name

. The point where one cycle ends and the next begins is where a colorless inert gas meets a soft, shiny metal. There are more of these this is interesting can you see another breakup? It is between colorless inert gas and shiny metal. That means between xenon 54 and cesium 55. Notice that the brakes seem to be spaced further apart and there are more metals and not as much. many non-metals among brakes this is the last colorless inert gas on the list called radon we cannot show the elements next to it astatine and francium because they are so rare there is not enough on earth to see them but scientists can guess that francium It is a soft metal because it follows a colorless inert gas that lasts for a few family members.

Uranium is a pleasure to meet and we will now back up so we can see them all, although the

name

s and symbols are too small to see. Here are the six line breaks that divide a colorless inert gas and a shiny metal. Look at this, scientists. He divided the long line of elements into seven shorter lines at the cuts and placed them one below the other. This is the birth of the seven horizontal rows of the periodic

table

. Each row ends with an inert, colorless gas because these gases are so similar that they form a species. of family and put one under the other in the same column each element after the inert gas is a soft and shiny metal and begins the next row then from left to right all the rows except the first repeat the same pattern start with the metals of the left then move on to the semimetals in the middle and then finish with the nonmetals on the right, the last nonmetal being an inert, colorless gas.

Another word to repeat is periodic because the arrangement of the elements is now in rows and columns. The periodic

table

should also be called a table. of the elements