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Properties

Metals can have different properties depending on their atomic configuration and molecular properties. Generally metals are good conductors of electricity and heat. They also display magnetic properties. Typically metals are malleable and ductile. They will deform under stress without cleaving. Metals are shiny and lustrous. Sheets of metals beyond a few micrometres thick will be opaque but golf lead transmits green light.

Although metals generally have higher densities than most non-metals, there is a wide variation in their densities. Lithium is the lease dense solid element whereas osmium is the densest solid element. Alkali and alkaline earth metal in group I A and II A are referred to as the light metals. This is due to their low density, low hardness and low melting points. The high density of most metals is due to the tightly packed crystal lattice of the metallic structure. The strength of the bonds of different metals reaches a maximum around the center of the transition metal series. Those elements have large amounts of delocalized electrons in tightly binding type metallic bonds. However, other factors are also involved. These are atomic radius, nuclear charge, number of bond orbitals, overlap of orbital energies and crystal forms.

Categories within Properties

Electric

Postings: 78

Metals are very electrical conductive.

Magnetic

Postings: 9

A metal magnetic produces a magnetic field.

Semiconductor

Postings: 21

A semiconductor has electrical conductivity and insulation affects.

A Discussion On Wave Properties

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Analysis of the mechanical properties of different materials

Stress, Strain, Toughness, Resilience, Youngs Modulus, Ductility for different types of material including metals, ceramics and plastics are examined and compared Please see the attachment. Let me know if you would like me to restrict the posting to you. Thank you!

Pressure Change Problem for Descending Vertical Pipe

Water is descending in a vertical pipe of diameter 8 cm. At a certain level the water flows into a smaller pipe of diameter 1.2 cm. At a certain instant the gauge pressure of the water at a point 80 cm above the narrowing point is 86.6 kPa and the water there is moving at 94 cm/s. What is the gauge pressure of the water just

Equations of state and functions of various parameters

The number of states is expressed as a function of various parameters for three systems below. For each, find an "equation of state" which gives the relationship between p, V, N, and T. (C and b are constants.) Please see the attached Microsoft Word document regarding specifics.

Solutions of the wave equation

See file for full description. A string of length L is fixed at both ends. The speed of waves on the string is c. The string is initially displaced a distance h uniformly along its length, and is released from rest at t=0. (The string initially has a very large slope at x=0 and x=L; assume the slope is infinite.) For w_n

Eigenfunctions and eigenvalues of d^2/dx^2

Consider the square of the derivative operator D^2 (a) Show that D^2 is a linear operator (b) Find the eigenfunctions and corresponding eigenvalues of D^2. (c) Give an example of an eigenfunction of D^2 which is not an eigenfunction of D.

Wave Equation Problems

1. Two waves are traveling through the same container of nitrogen gas. Wave A has a wavelength of 1.5 m. Wave B has a wavelength of 4.5 m. The speed of wave B must be________ the speed of wave A. a. one-ninth b. one-third c. the same as d. three times larger than 2. As the wavelength of a wave in a uniform medium inc

Two Velocities in a Traveling Wave

(See attached file for full problem description with proper equations) --- Two Velocities in a Traveling Wave Wave motion is characterized by two velocities: the velocity with which the wave moves in the medium (e.g., air or a string) and the velocity of the medium (the air or the string itself). Consider a transverse wave