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If glass is covalently bonded are the electrons free to move and how is this related to the electrical conductivity of glass?
In glass, the electrons are not free to move due to the covalent bonds holding the atoms together. This lack of free-moving electrons leads to glass being an insulator with low electrical conductivity.
How can you make a glass surface to have a positive surface charge?
You can make a glass surface have a positive surface charge by rubbing it with a material that transfers electrons to the glass, such as a silk cloth or a piece of fur. This transfer of electrons can leave the glass with a net positive charge on its surface.
How many electrons does the element Be have in it?
4 electrons, 2 valence electrons
How many electrons does germanium have?
Germanium has 32 electrons.
How many electrons does xenon have?
Xenon has 54 electrons.
Why does a glass rod get positively charged when rubbed with rubber?
When a glass rod is rubbed with rubber, electrons are transferred from the glass to the rubber due to differences in their electronegativities. This leaves the glass rod with a net positive charge, as it has lost electrons.
Why is glass an insulator?
Glass has no free electrons to convey current.
When rubbed against a silk cloth a glass rod loses electrons. How does this affect the charges of the glass rod and the silk cloth?
When a glass rod is rubbed against a silk cloth, the glass rod becomes positively charged because it loses electrons to the silk cloth. The silk cloth becomes negatively charged because it gains those electrons from the glass rod. This transfer of electrons results in the glass rod and silk cloth having opposite charges.
What Do not permit electrons to flow through them?
Glass
If glass is covalently bonded are the electrons free to move and how is this related to the electrical conductivity of glass?
In glass, the electrons are not free to move due to the covalent bonds holding the atoms together. This lack of free-moving electrons leads to glass being an insulator with low electrical conductivity.
When ultaviolet light is incident upon glass electrons within atoms in the glass?
When ultraviolet light is incident upon glass, the electrons within atoms in the glass absorb the energy from the light. This absorbed energy can cause the electrons to move to a higher energy state, leading to the emission of light in the form of fluorescence or phosphorescence.
Why glass is charged positively when it is rubbed with dry cloth explain whether glass gains or loses electron when it is charged answer?
When glass is rubbed with a dry cloth, the friction creates a transfer of electrons between the glass and the cloth. Glass loses electrons during this rubbing process and becomes positively charged. This means the glass gives up some of its negatively charged electrons to the cloth, resulting in a net positive charge on the glass.
Does glass hold electrons tightly?
Glass is an insulator, which means it does not conduct electricity well. This suggests that electrons are held tightly within the structure of glass, making it difficult for them to move and carry electrical current.
When you rub glass with cotton is it negatively charged or positively?
When you rub glass with cotton, the glass becomes positively charged. This occurs because electrons are transferred from the glass to the cotton, resulting in a deficiency of electrons in the glass. Consequently, the glass ends up with a positive charge, while the cotton gains a negative charge.
Why is glass transparent?
When the electrons in molecules are unable to absorb the energy of incident photon, the photon continues along its path. This happens in the case of glass, even though glass is not 100 percent transparent, as some of the photon energy is absorbed by the glass electrons.
What materials has a strong resistance to the flow of electrons?
Materials such as rubber, glass, and plastic have strong resistance to the flow of electrons. They are considered insulators and are used to prevent the flow of electricity in many applications.
Does a glass rod rubbed with silk become negatively charged?
when a glass rod is rubbed with silk cloth, some of the electrons are removed from the atoms of the glass rod and deposited on the silk leaving negatively carged and glass positively charged Different materials have different electron affinities, meaning electrons will tend to gravitate towards certain materials over others. When silk is rubbed against a glass rod, the atoms of the rod and the atoms of the silk interact, and the silk atoms pull electrons from the rod's atoms. Thus, the silk winds up negatively charged and the rod becomes positively charged. Source: http://www.physicsclassroom.com/class/estatics/u8l2a.cfm
