Boron On The Periodic Table

For the lesson observed the objectives was to explain the trends of the periodic table based on the elements’ valence electrons and atomic numbers. Additionally, students were responsible for applying their previous knowledge in calculating subatomic particles to review the Bohr Models and discus the relationship among families in the periodic table. Students will use the information from today’s lesson to make future judgments on reactivity and bonding created during chemical reactions in the next unit. Lastly, students were to connect the information on elemental properties to previous experiences with their health, commercial products, and everyday life.

Boron is one of the many elements on the periodic table. Its atomic number is five and its symbol is the letter B. Boron’s atomic weight is 10.811. It is a solid at room temperature. The group number for Boron is 13 and the periodic number for Boron is 2. It is also in the p block. Its element category is a metalloid. Boron came from the Arabic word Buraq and the Persian word Burah, which are both meanings for the material called “Borax.” Boron is a tough element – very hard, and very resistant to heat. In its crystalline form it is the second hardest of all the elements on the mohs scale – only carbon (diamond) is harder. Only 11 elements have higher melting points than boron: these are C, W, Re, Os, Ta, Mo, Nb, Ir, Ru, Hf, and Tc.

The periodic table is a table that categorises and displays all of the chemical elements. It is made up of groups, periods and blocks. A group (also referred to as a family) are the columns of elements, there are 8 groups. The elements in each family have similar but not identical properties and they all have the same number of outer electrons. E.g. lithium (Li), sodium (Na), potassium (K) are all soft, white, shiny metals because they are all members of group 1. A period is each horizontal row of elements, there are 7 periods. In a period, the elements are not alike in properties, the first element in a period is always an extremely active solid, and the last element in a period is always an inactive gas. Properties change greatly across a given row. Each new period represents the next shell which electrons fill. A block is a region of the periodic, there are 4 blocks: S, D, P and F.

Filled with shiny, colorful pictures of elements in their many applications, the book was my first in-depth introduction to chemistry. Two pages were dedicated to each element and explained the most common uses. I started to spend time pondering what was in some of the objects around me. I viewed objects more in their elemental sense rather than “plate material” or “cardboard material”. Since then, I’ve only tried to expand my knowledge of the chemical makeup of my world.

Every element is valuable and unique due to the endless arrangements of sub-atomic particles, which fascinates me. This allows for a diversity of elemental properties, sparking innovation for chemists to develop new products from different tasting chocolates to materials used for rockets- shaping society and the environment of the modern world. The sheer range of applications where chemistry is involved inspires me to contribute, while learning, unlocking why everything behaves the way it does.

Hello, this is Antoine Balard, and I am a French Chemist. It has been approximately 1 year since I discovered the fascinating element named Bromine in 1826. It was while I was experimenting with ocean salt water when I discovered this very reactive element in France. I did some research and found that the element's name comes from a Greek word called “bromos” which means to have a certain stench to it. This element contains 45 neutrons and 35 protons. Bromos has an amount of 4 energy shells. Bromine’s element symbol is “Br”.

My element is Silver. The atomic number of silver (Ag) is 47. Silver is in group 11 and period 5. The mass number of Silver is 107, and its electron configuration is [Kr] 4d^10 5s^1. Silver was one of the first five metals discovered and used by humans. Silver’s melting point is 1,763.2 degrees fahrenheit. Silver is commonly used to make mirrors, as it's the best known reflector of light. Silver is also commonly in silverware, where the appearance is important. Silver is most commonly used in jewelry, where sterling silver is 92.5% silver.

The placement of hydrogen and helium on the Periodic Table causes many of the mistakes, anomalies and exceptions in the rules it follows. First, hydrogen is a non-metal, but it is placed on the metal side due to its atomic number and because it only has one valence electron. Placing the element in the middle of the table keeps hydrogen from being falsely labeled as an alkali metal and keeps it from being classified as a metal since it isn’t identified with a specific column or group. Secondly, helium is a noble gas, but it has two valence electrons, which means it should be in group two. However, it is a non-metal so putting it in group two would also be inaccurate. To fix this, we also put helium in the center and used color coding to match

The element I got was Lead, Lead is a chemical element that is assigned the symbol Pb it is from the Latin plumbum and it is a bluish-white element, Lead is not really rare but since it is fairly widespread and easy to extract it typically occurs in very small amounts in ores and is found in the ores galena, anglesite, cerussite and minim also the earth’s crust contains approximately 0.0013 percent lead. Lead can be toxic to humans and animal but is found mostly in combination and used a lot in cable sheaths, batteries, solder, and pipes, its ductility and resistance to corrosion with tiny leaks, make it a particularly good material for constructing water pipes. This element has been known since ancient years and the year is unknown when it

First discovered by English scientist Sir Humphrey Davy in 1808 , boron was popular ever since. Boron has been used for thousands of years , but this element had not been purely isolated until Sir Humphrey Davey isolated it. Boron had not been successfully isolated until this date because boron does not naturally occur in its elemental form. Davy did isolate this material by using voltaic piles and electrolysis to separate boron. Today boon is used commonly. Its applications range from pyrotechnics to rocket fuel.

Boron is responsible for cell development and elongation of the plant. It also regulates plant carbohydrate metabolism. Boron are abundant in soil where it has an organic matter, but soil lacks of Boron during summer season where most of soils is dry. Sandy soils are Boron deficient because it lacks of organic matter. Boron deficiency will affect the growing plants to

Also humans can be exposed to boron through water, vegetables, fruits, air and consumer products. When humans consume large amounts of boron containing in the food, the boron concentrations in their bodies may increase to levels that can

Carbon, this element has a lot of information to offer. By the end of this essay you will only know a handful of information on carbon. This essay will be talking about where carbon is located on the table, when and who discovered carbon, and how carbon can be used.

Having a shiny surface with a pinkish or yellowish tinge, Bismuth is a soft metal which breaks easy at room temperature (Bismuth). The density is 9.78 g/cm³ (Bismuth). The melting point is 271˚C with its boiling point at 1,560˚C (Bismuth). Bismuth has an atomic number of 83, which places it in period 6, and group 15. Its atomic mass is 208.9804 (Bismuth). I have included a picture of Bismuth below. I thought it was beautiful and I wanted everyone to see

Boron is relatively inert and must be in a highly divided state to react with acids or alkalis.