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How could you use a pith ball electroscope to learn which material holds onto its electrons more strongly?
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Are all materials made up of elements?
Any material that you encounter on earth is made of an element or some combination of elements. An element is just the name of a substance that contains just one type of atom. An atom is just a specific combination of neutrons, protons, and electrons; atoms/elements are defined in the Periodic Table according to their atomic number, which is the number of protons in their nucleus. So every material you encounter is some combination of electrons, protons or neutrons unless you are encountering some very high energy phenomena. A material which is not made of elements could be pure electrons. Although close to impossible to isolate (they repel each other so strongly), pure electrons would not be an element. Electricity in a wire would not count because this is just a wire, with some electrons flowing through it and those electrons make up the elements in the wire. A material which is not made of elements could be a plasma. A plasma from Hydrogen in which all electrons and protons are disassociated may be considered not of an element (although not all plasma's would meet this condition and even then you could still consider this plasma an ionized Hydrogen). Very high energy phenomena, such as those in particle accelerators and the early universe, create fundamental particles and plasmas which are certainly not elements (like a quark-gluon plasma). There is basically no material that you could encounter and live to tell that tale that is not made up of some combination of elements.
How many electrons could a Cesium CS ion have?
55* 55 electrons and neutrons.
What is the core electrons and valence electrons for Li ion?
Li+ ion has only 2 electrons in its only shell and they could be considered as both core and valence electrons.
The process of losing or gaining electrons is called what?
I'm sure it's ionization, though I could be wrong.
How many electrons are in the outermost energy level of most atoms?
This value could vary from element to element and atoms could have 1 to 8 valence electrons.
How could you use a pith ball electroscope to learn which two objects that are made from different materials hold on its electrons more strongly?
ii
What makes an object positively or negatively charged?
Step one. Charge the electroscope by the induction method. A rod is used of opposite sign to that required on the electroscope . The rod is brought near to the cap so that the leaf diverges by the amount desired, and the electroscope is momentarily earthed by touching it with a finger. The rod is then removed, leaving the electroscope charged. (If the charged rod used is Benoite this leaves a positively charged electroscope, if a glass rod is used then the result is negatively charged electroscope) Step two Now use the object of unknown charge, A charge of the same kind as that on the electroscope will cause an increase while a charge of the opposite kind will cause a decrease in leaf divergence when the object is brought near to the electroscope. You must bring the object down from a good height, and move it slowly down towards the cap so any change in divergence will not be overlooked before the object becomes to close to the cap. Bringing the object down too quickly and too close to the cap could lead to a false reading. Source(s): A. F. Abott Ordinary Level Physics
The outer electaons are attracted to the nucleus by a force stronger than the inner shell eclectrons?
No. The outer shell (valence) electrons are not attracted towards the nucleus as strongly as are the inner (core) electrons. This is why they could be traded in and out during chemical reactions, while the core electrons normally could not.
What happens when charging by rubbing?
Static electricity is the result of creating a charge by rubbing two objects together. The positively charged objected with accepted electrons from the negatively charged item giving it an electric charge.
Why cant conductors generate static electricity when rubbed together?
Static electricity causes electrons to move from one material to the other. In an insulator, these electrons can't flow back to equalise the charges, whereas in a conductor they can; so whilst they could conceivably generate static electricity, it would be lost as quickly as it was made.
What ia another word for strongly?
I think you could use "firmly" as an alternative to strongly. Or depending on the use, "soundly" could also be used.
Are all materials made up of elements?
Any material that you encounter on earth is made of an element or some combination of elements. An element is just the name of a substance that contains just one type of atom. An atom is just a specific combination of neutrons, protons, and electrons; atoms/elements are defined in the Periodic Table according to their atomic number, which is the number of protons in their nucleus. So every material you encounter is some combination of electrons, protons or neutrons unless you are encountering some very high energy phenomena. A material which is not made of elements could be pure electrons. Although close to impossible to isolate (they repel each other so strongly), pure electrons would not be an element. Electricity in a wire would not count because this is just a wire, with some electrons flowing through it and those electrons make up the elements in the wire. A material which is not made of elements could be a plasma. A plasma from Hydrogen in which all electrons and protons are disassociated may be considered not of an element (although not all plasma's would meet this condition and even then you could still consider this plasma an ionized Hydrogen). Very high energy phenomena, such as those in particle accelerators and the early universe, create fundamental particles and plasmas which are certainly not elements (like a quark-gluon plasma). There is basically no material that you could encounter and live to tell that tale that is not made up of some combination of elements.
What happens to metals as they conduct electricity?
The electrons in a conductor will support the movement of electric current. A conductor is defined as a material with a number of electrons in its makeup that are actually in what is called the conduction band. The conduction band is an energy level where electrons must be to permit conduction in a material. If the minimum energy in the conduction band in a material is such that a lot of electrons in that material are already at or above that level, then these electrons will be available to support current flow. Remember that electron current flow is moving electrons, and it is not about sending an electron into a conductor, like a wire, at one end and getting that same electron out at the other. It is about sending a bunch of them in at one end, and all the electrons already in the conductor move over and a bunch come out the other end. The electrons already in the conduction band within the conductor support current flow in this way.
By looking at a solution could you tell if it could absorb uv strongly?
YES
How does copper conduct electricity?
Copper conducts electricity by "musical electrons" like other conductors do. Let's look at copper and see what's up. Copper atoms in a copper wire all form some kind of metallic crystal structure. Not all the electrons in the valence shells of the copper atoms are "locked in place" in this structure. They are free to move around, and are said to be "free electrons" in this application. As they are not "bound" in the structure, the electrons can be made to move fairly easily. They can contribute to current flow. If we apply a voltage across the wire from end to end, electrons will enter one end of the wire and electrons will emerge from the other. Not the same electrons, mind you. Put some in one end, some come out the other. It could also be said that some of the electrons of the copper are at Fermi energy levels that are in what is said to be the "conduction band" for copper. The conduction band is the minimum energy level necessary for electrons of a given material to be in to support conduction in that material. If the Fermi energy levels of the valence band electrons is up in the conduction band, then that material is a conductor. Copper is this way.
How many electrons could a Cesium CS ion have?
55* 55 electrons and neutrons.
What is a material that could not be scratched easily?
A material that is not easily scratched is _____.
