Analysis Of Metallic Bonds

1493 Words3 Pages
bulb-icon

Recommended: Quizlet chemical bonding

CHEMISTRY ASSIGNMENT ON PERIODIC TRENDS

BY P.S.S.ADITHYA 102115030
METALLIC BONDING TRENDS

Metallic Bonds are the bonds formed between metals because of the overlap of atomic orbitol. The free electrons present in the atoms are going to excited and leaves the atom core. As a result the free electron present stays on the surface of the metal but is no longer in the vicinity of the atom from which it was excited. In other words the electron becomes delocalized as it is no longer in the control of the atom.

But even though the electron is excited there will also be interaction between the ion ( As the atom …show more content…

So
Malleability and Ductility
Consider any period. If we consider the crystal lattice then alkali metals have bcc structure whereas others have ccp or hcp crystals. As a result alkali metals are soft and are least malleable when compared with other groups.

THERMAL AND ELECTRICAL
CONDUCTIVITY
The ability of the metal to allow the heat flow from warmer side to the colder side is called Thermal conductivity.
Generally heat is transferred by electronelectron. This type of collision is favored more by the metals because of the delocalization of electrons on their surface. As a result electron electron collisions can take place more efficiently. So heat is transferred more easily.
Within a Group
As you move down the group the thermal conductivity decreases because of increase in atomic size.
But Li acts as an exception because the mobility of the electrons within the crystal decreases.
Between Groups
As you move across the period the atomic size decreases and the number of electrons increases.
Group 1 < Group 2< Transition elementsGroup 14>Group

Show More
Related

  • Using The Vernier Lab Pro Interface And The Logger Pro Interface

    1180 Words  | 3 Pages

    When there is a heat exchange between two objects, the object’s temperature will change. The rate at which this change will occur happens according to Newton’s Law of heating and cooling. This law states the rate of temperature change is directly proportional between the two objects. The data in this lab will exhibit that an object will stay in a state of temperature equilibrium, unless the object comes in contact with another object of a different temperature. Newton’s Law of Heat and Cooling can be understood by using this formula:

    Read More

  • Aluminum

    1227 Words  | 3 Pages

    Aluminum is a lightweight, silvery metal. The atomic weight of aluminum is 26.9815; the element melts at 660° C (1220° F), boils at 2467° C (4473° F), and has a specific gravity of 2.7. Aluminum is a strongly electropositive metal and extremely reactive. In contact with air, aluminum rapidly becomes covered with a tough, transparent layer of aluminum oxide that resists further corrosive action. For this reason, materials made of aluminum do not tarnish or rust. The metal reduces many other metallic compounds to their base metals. For example, when thermite (a mixture of powdered iron oxide and aluminum) is heated, the aluminum rapidly removes the oxygen from the iron; the heat of the reaction is sufficient to melt the iron. This phenomenon is used in the thermite process for welding iron .

    Read More

  • Thermodynamics: The Transfer Of Heat And The Convection

    1883 Words  | 4 Pages

    Convection is a transfer of internal energy into or out of an object by the physical movement of a surrounding fluid that transfers the internal energy along with its mass. According to Oxford Dictionary, convection is the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder or denser material to sink under gravity's influence, that results in transfer of heat. Two fluids are liquid and gas.The fluid above a hot surface expands, becomes less dense, and rises.This applies to objects such as steam from a hot cup of coffee turning cool, ice melting like heat moving to ice from the air, or frozen material becoming raw like how frozen food thaws more quickly under cold running water. When

    Read More

  • Heat Capacity of An Unknown Metal

    1176 Words  | 3 Pages

    Since all metals have different densities and makeups I think that the heat capacity will greatly vary. The makeup of iron is very different than aluminum so the heat capacity will be quite different. Also, a lot of metals are not completely pure and that will also have some effect on the heat capacity.

    Read More

  • What Is Quantum Mechanics Essay

    887 Words  | 2 Pages

    In 1907, Einstein used Planck’s hypothesis of quantization to explain why the temperature of a solid changed by different amounts if you put the same amount of heat into the material. Since the early 1800’s, the science of spectroscopy had shown that different elements emit and absorb specific colors of light called “spectral lines.” In 1888, Johannes Rydberg derived an equation that described the spectral lines emitted by hydrogen, though nobody could explain why the equation worked. This changed in 1913 when Danish physicist Niel Bohr applied Planck’s hypothesis of quantization to Ernest Rutherford’s 1911 “planetary” model of the atom, which affirmed that electrons orbited the nucleus the same way that planets orbit the sun. Bohr offered an explanation for why electrical attraction does not make the electrons spiral into the nucleus. He said that electrons in atoms can change their energy only by absorbing or emitting quanta. When an electron absorbs a quantum it moves quickly to orbit farther from nucleus. When an electron emits a quantum the electron jumps to a closer

    Read More

  • Overview of Aluminum

    886 Words  | 2 Pages

    The name comes from the Latin word alumen, for the mineral alum. The electron configuration is [Ne] 3s2 3p1. The element looks solid at room temperature and is a classification of other metals. Its crystal structure is cubic. Aluminum is not an element found in nature, it is found in the earth’s crust which is 8.2 percent of it. Aluminum is obtained from rocks called bauxite. It is the most available element. In the beginning, scientist suspected it was in the earth’s crust. There were many chemists who produced aluminum. The very first was Hans Christian Oersted in 1825. Its color is silvery-white with a bluish tint. The element is soft but it becomes strong and hard when combined with other elements. The atomic number of it is 13, which means that the atom has 13 protons therefore 13 electrons. It has 14 neutrons. The atomic weight is 26.98154. The melting point is 660.37 degrees Celsius. The boiling point is 2467 degrees Celsius. As for the atomic structure, the element has three energy levels. The first has 2, the second has 8 and the third has 3.

    Read More

  • Periodic Table Research Paper

    1700 Words  | 4 Pages

    ...ct that metals usually have high melting points and nonmetals usually have low melting points, although carbon, a nonmetal, has the highest melting point of all elements. Metallic characteristics decrease moving left to right across the table and increase moving down the periodic table while the opposite is true of nonmetallic

    Read More

  • Coduction Convection Radiation

    354 Words  | 1 Pages

    Conduction can be seen when the ice touched the cans full of insulation. The cooled cans touched the installation inside the can making it cooler. Convection can be found al over the place in our experiments. When we heated our model dwelling with the heat lamp the outside of the house heated. This in turn heated the air inside making the air temperature rise.

    Read More

  • Factors Which Affect the Resistance of a Wire

    1487 Words  | 3 Pages

    of the atoms, so if there are more or larger atoms then there must be

    Read More

  • Alkaline Metals

    2035 Words  | 5 Pages

    The alkaline earth metals are an interesting group of elements that have many properties and uses in this world. To learn about them will help one learn more about the world around them. These metals are soft, shiny, silvery, and very reactive; although they are not as reactive as the alkali metals, the group of elements right next to them. Speaking of groups, the alkaline earth metals are in the left side and in group 2 of the periodic table. When forming ions, the alkaline metals usually lose 2 electrons to get a positive 2 charge and become more stable. This allows them to take part in ionic bonds, mostly with the halogen family because halogens are negatively charged in their ionic form. Because the alkaline metals are positively charged, they attract and form ionic bonds.

    Read More

  • Aluminium Essay

    696 Words  | 2 Pages

    At this point the desirable crystalline structure of the metal has been reached but it must not be allowed to be heated further as the solution will begin to melt.

    Read More

  • Heat Loss

    2043 Words  | 5 Pages

    Conduction is the process by which heat is transferred from on solid to another. When a solid is heated the molecules inside, which are normally almost static, start to vibrate. When another solid is brought into contact with the heated solid the energy from the vibrating molecules at the edge of the heated solid is transferred to the outer molecules of the other solid.

    Read More

  • Superconductors and Superconductivity

    1569 Words  | 4 Pages

    Thermal vibrations also increase the resistance so when the temperature is lowered, the thermal vibrations of the atoms decrease and so the electrons are less frequently scattered. In short, the resistance of a metal is dependent on the purity of a metal and its temperature: metals with few impurities reach a superconducting state at low temperatures.

    Read More

  • Heat Transfer Essay

    1473 Words  | 3 Pages

    Heat energy is transferred through three ways- conduction, convection and radiation. All three are able to transfer heat from one place to another based off of different principles however, are all three are connected by the physics of heat. Let’s start with heat- what exactly is heat? We can understand heat by knowing that “heat is a thermal energy that flows from the warmer areas to the cooler areas, and the thermal energy is the total of all kinetic energies within a given system.” (Soffar, 2015) Now, we can explore the means to which heat is transferred and how each of them occurs. Heat is transferred through conduction at the molecular level and in simple terms, the transfers occurs through physical contact. In conduction, “the substance

    Read More

  • The Periodic Table: The Elements Of The Periodic Table

    1006 Words  | 3 Pages

    Metalloids on the other hand have properties of both nonmetals and metals and they are found between the border that differentiates metals and nonmetals. Then, we have the nonmetals, Halogens and The Noble gases. Moreover, The halogens are group 17 and all halogens have 7 electrons in the outer energy shell so they become very very active because they really want to gain an electron to have a full outer shell. Finally, we have the Noble gases which are found in group 18. They are simply non-reactive because they all have 8 electrons in their outer shell making them full energy levels. Finally, the periodic table also tells us the ionic charge or the common charge of an atom. One needs to memorize that for group 1 in the periodic table it has a +1 charge and group 2 has a +2 charge then skipping to group 13 you also add a plus 3 charge; however, group 14 has a plus or minus 4 ionic charge. Then, you start using the (-) sign after group 14. So for group 15 it’s gonna be a -3 charge and so on and so forth, until you end up with 0 in group 18 as the Noble Gases do not have any charge. As for the transition metals they sort of have more than one ionic

    Read More

More about Analysis Of Metallic Bonds

Open Document