The periodic table is the most important chemistry reference there is. It arranges all the known elements in an informative array. These elements are arranged left to right and top to bottom. Usually in order of increasing atomic number.
The different rows of elements are called periods. The period number of an element signifies the highest energy level an electron in that element occupies (in the unexcited state). The number of electrons in a period increases as one traverses down the periodic table; therefore, as the energy level of the atom increases, the number of energy sub-levels per energy level increases. (Chemistry about, 2014)
Features Characteristics (Metals and non metals)
Elements in the periodic table are grouped as metals, metalloids and non metals.
Most elements are metals. Metals exhibit the following properties:
- usually solid at room temperature (mercury is an exception)
- high luster (shiny)
- metallic appearance
- good conductors of heat and electricity
- ductile (can be drawn into wire)
Metalloids have some of the properties of metals and some nonmetallic characteristic.
- dull or shiny
- usually conduct heat and electricity, though not as well as metals
- often make good semiconductors
- often exist in several forms
Nonmetals exhibit very different properties from metals. Nonmetals display some or all of the following characteristics:
- dull appearance
- usually brittle
- poor conductors of heat and electricity
- usually less dense, compared to metals
From these main groups the elements are also formed into a element groups.
As seen on the element table.
The key groups are post transition metals, transition metals, halogens, noble gases, metalliods, other metals, alkali metals and alkaline earth metals.
Boron is part of the metalloids along with Sicilian, Geranium, Arsenic, Antimony and Polonium. It is in the light green part of the table above. A metalloid is a chemical element with properties in between, or that are a mixture of, those of metals and non metals.
Boron VS Hydrogen
Boron and Hydrogen mixed together form Borane, but individually both share similarities and differences. Borane is formed by clusters of boron mixing with hydrogen around them creating the reactive element. It consists of one boron (B) and three hydrogen atoms (H). The comparison between the two forming, is Hydrogen now has two electrons filling their outer shell and Boron has lost its 3 extra electrons, giving it a full shell as well. Hydrogen is in its own special group whereas boron has properties of both non-metal and metal features, also known as a metalloid. Both do not react with water, but hydrogen reacts with oxygen and acids unlike boron. Borane is used in organic synthesis which is a special branch of chemical synthesis and is concerned with the construction of organic compounds via organic reactions.
Boron is part of the metalloids along with Sicilian, Geranium, Arsenic, Antimony and Polonium. It is in the light green part of the table above. A metalloid is a chemical element with properties in between, or that are a mixture of, those of metals and non metals.
Boron VS Hydrogen
Boron and Hydrogen mixed together form Borane, but individually both share similarities and differences. Borane is formed by clusters of boron mixing with hydrogen around them creating the reactive element. It consists of one boron (B) and three hydrogen atoms (H). The comparison between the two forming, is Hydrogen now has two electrons filling their outer shell and Boron has lost its 3 extra electrons, giving it a full shell as well. Hydrogen is in its own special group whereas boron has properties of both non-metal and metal features, also known as a metalloid. Both do not react with water, but hydrogen reacts with oxygen and acids unlike boron. Borane is used in organic synthesis which is a special branch of chemical synthesis and is concerned with the construction of organic compounds via organic reactions.