Explore BrainMass


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


Postings: 78

Metals are very electrical conductive.


Postings: 9

A metal magnetic produces a magnetic field.


Postings: 21

A semiconductor has electrical conductivity and insulation affects.

A Discussion On Wave Properties

1. An ocean wave travels 10.8 m in 6.9 s. The distance between two consecutive wave crests is 4.3 m. What is the frequency of the wave? Answer in units of Hz 2. Water waves in a lake travel 4.73 m in 1.01 s. The period of oscillation is1s. What is the speed of the water waves? What is their wavelength 3. If you slosh the wate

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!

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.

String tension

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

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

Standing wave problems

1. Suppose that there was a ride at an amusement park which was titled "The Standing Wave." Which location - node or antinode - on the ride would give the greatest thrill? 2. A standing wave is formed when a. a wave refracts due to changes in the properties of the medium. b. a wave reflects off a canyon wall and

Properties of waves.

For each of the following wave functions: Ψ1 = cos [π (3 x - 4 t)] Ψ2 = Ψ0 sin [ 0.3x + 0.6 π t] Determine the value and give units of frequency, angular frequency, wavelength, period, and amplitude. Assume x in expressed in meters and t in seconds.

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

Vector Problem and Degrees

A 100N sign is supported by two cables that are attached to two cables, attached to two buildings. The cables make an angle of 30 degrees with the top of building A and 60 degrees with the top of building B. Find the magnitude of the force exerted by each cable on the sign.