Chemical element

could even write they knew some of the elements that are on the periodic table. The elements include silver, gold, copper, tin, lead, and mercury (substances that could not be broken down chemically). Not until 1649 did a man by the name of Hennig Brand discover phosphorous (an element) through scientific experiments and research. Another scientist, Johann Dobereiner, had begun to group elements with properties alike in the years of 1817 to 1829. He grouped elements into threes, or triads, and…

What are group one elements? Group one elements are alkali metals. The physical properties of group one elements are that they are shiny and the alkali metals are very soft. Lithium is the hardest alkali metal and they become softer as you go down the group. The chemical properties of group one is that they’re very reactive when mixed with water or when in contact with the air. Each element in group one has one electron in their outermost shell. Also, group one elements get more reactive as you…

Dmitri Ivanovich Mendeleyev, born on February 8, 1834, was believed to be the youngest of 14 children. His father, Ivan Pavlovich Mendeleyev was a teacher at a local gymnasium. Around the time Dmitri was born, his father went blind and later died in 1847. Consequently to support the family, his mother Mariya Dmitriyevna Kornileva began working at a small glass factory in a nearby town, and eventually started managing it. On December of 1848, the factory burned down, and the family moved to St.…

what differences and similarities elements have with each other. As of the similarities we have to identify the physical properties of the elements and compare them. Also, this analyzes what trends certain elements shared within in the periodic table. Finally, after looking at all the aspects of an element we will make our conclusion. These conclusions will help us to find the unknown elements we have been looking for this whole time. In order to place an element in the right place, we had…

show why elements in similar group and period react differently. The purpose for this lab is to test the idea of patterns in the periodic trend, and if elements in similar group or similar period react differently due to the trend that they follow. If two elements in the same group or family are to be tested, one of the element reactivity will be slightly different from the other. This is the work of the periodic trends, the characteristics of an element atom change because of the element…

For many years helium was known as an element that might exist on the sun but unknown on the Earth. Sir William Ramsay discovered helium after treating a uranium mineral. Lockyer and Professor Edward Frankland suggested the name helium. A sample of the gas was sent to Sir William Crookes and Sir Norman Lockyer who identified helium.The name is derived from the Greek 'helios' meaning sun, as it was in the sun's corona. Helium is a gaseous chemical element,with a symbol of He. Its atomic number…

the elements on the periodic table. The Disappearing Spoon focusses on the history of the Periodic Table by telling stories that show how each element affected the scientists that discovered it. For each element, Kean supplies an extensive backstory for its foundation, the common (or uncommon) uses of the element and other useful factoids about the matter. The author begins the novel with a physical description of the Periodic Table as a whole; he discusses the names of the groups of elements…

obtained from chemical compounds. This curiosity was noted previously by Henry Cavendish, but it remained anonymous. ("Neon," 1999). In 1898, a Scottish chemist Sir William Ramsay (1852-1916) and English chemist Morris M. Travers (1872-1961) discovered neon just after they discovered the element krypton that same year. ("Neon," 2000). Physical Description Neon is the second element in Group 18 of the periodic table, a group of elements known as the inert or noble gases. Neon’s chemical…

Magnesium Magnesium is one of the best elements you can own it’s a 3rd period element its part of the alkaline earth metal family. Magnesium is a metal and it’s a solid, with a isotope of 24 and really high energy level. Buy magnesium it’s going to be your favorite purchase you will ever make you won’t regret it. Magnesium was discovered in 1808 by a guy named Sir Humphrey Davy but it was first experimented by joseph black. The Country it was discovered in was England in the United Kingdom.…

pressures of gases. Dalton’s theory included that all matter is made of atoms. He said that atoms are indivisible and indestructible. He also theorized that atoms of an element are identical in properties and mass. Dalton stated that compounds are formed by combining two or more different types of atoms. Lastly, Dalton said that a chemical reaction is the rearrangement of atoms.…