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The atoms become smaller in atomic radius.
atoms
thermal energy.
Thermal Energy
Polyethylene gets harder as the number of carbon atoms increases.
Solids comprise of atoms. As temperature increases, the atoms vibrate and move further from each other. The effect makes solids to expand in all directions.
The current is the flow of electrons. Temperature is the movement of atoms. As the current increases there is more collisions between the atoms and the electrons. Some of the energy from the electrons is transferred to the atoms, thus they move faster and so the temperature increases.
Thermal energy (temperature) is the measurement of kinetic energy of atoms moving in a substance, therefore, as the speed (kinetic energy) of these atoms increases, thermal energy increases as well.
covalent
Assuming you mean electronegativity, it is 2.2 on the Pauling scale.
Polyethylene gets harder as the number of carbon atoms increases.
This is because the medium then has atoms closer together making it easier to transmit motion between the atoms.
Covalent nature of the bond
Increases it by one mass unit.
Atoms comprising a molecule move faster as heat increases.
The thermal vibration of the atoms in the material increases the resistance of that substance. The resistance is greatly depends on temperature.
The atoms become smaller in atomic radius.