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false increasing temperature increases vibrations of cations in a metal lattice. This increases the chances of an electron colliding with a cation, decreasing overall mobility. Aside: when some metals and ceramics reach below a certain temperature their resistance drops to zero(literally) and they become superconducting, able to carry currents for thousands of years with no energy loss.
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Why drift velocity increases on increasing temperature?
because the kinetic energy of electron increase with increase in temperature. this increase in kinetic energy increase drift velocity
Does an electrical field become weaker as distance from the electron increases?
true! An electrical field becomes weaker.
Is an electrons movement related to its amount of energy?
Yes, an electron's movement is related to its amount of energy. As a matter of fact, everything's movement, not just an electron's, is related to the amount of energy that that thing has. As the energy of an object increases, either its translational, rotational, vibrational, or some combination of the three, motion increases.
What loses energy?
Oxidation occurs when a molecule loses an electron or increases its oxidation state when a molecule is oxidized it loses energy.
Atomic number increases by one during what type of radioactive decay?
Beta decays does. But alpha decay lowers it by 2.
What happens to the electron configuration as the atomic number increases?
the elctron configuration increases
Why drift velocity increases on increasing temperature?
because the kinetic energy of electron increase with increase in temperature. this increase in kinetic energy increase drift velocity
What happens to ionic radius if you add an electron?
It increases.
How does the electron's energy change as the orbit of the electron increases?
The farther an electron is from the nucleus of an atom, the more energy it has.
When electrons flow along the electron transport chains of mitochondria which changes occur?
The pH of the matrix increases
How is the specific charge of an electron affected when its speed increases?
Its charge is always 1.6X10-19 However when it's speed increases, it has more energy
What do you think happens to the size of the electron when it loses and electron?
The ATOM decreases in size when it loses an electron and increases when electrons are added.
How does electron affinity vary in periods?
Increases from left to right in a period
Is the electric field caused by an electron weakest near the electron?
The electric field is stronger near the electron and becomes weaker as the distance from the electron increases.
Why does resistance increases with increase in temperature?
this becos an increase in temp causes the immobile electrons to collide with the conductin electron thereby incresing resistance since conductivity is reduced
When electrons flow along the electron transport chains of mitochondria changes occurs?
The pH of the matrix increases
Why does the resistance of a conductor rise with temperature?
The mechanism of metallic resistance : as temperature increases the thermal vibrations in the lattice increase causing more electron scattering therefore more collisions will take place, slowing down the electron flow. This increases the rate of transfer of electrical energy by heating and increases the electrical resistance. The semiconductor's electrons also vibrate more at higher temperature so this contributes to resistance increase in the same way as for a metal. So what else could make the semiconductor conduct better? The answer is: more charge carriers. Whereas the number of free electrons in a metal is constant the effect of heating a semiconductor frees additional electrons (and holes). For silicon in this temperature range the effect of additional charge carriers outweighs the effect of additional vibrations, so the overall resistance will decrease with temperature.
