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What else can I help you with?
What does an atom do to fill a shell?
It has to either find an element that has enough electrons to share or it has to lose the 'extra' ones. Both actions produce ions.
What element has 2 electrons and a charge of negative 1?
The element with 2 electrons and a charge of -1 is helium. It typically has a charge of 0, but can gain an extra electron to have a -1 charge.
Do an isotope have extra electrons or protons?
Isotopes have the same number of protons (which determine the element) but may have a different number of neutrons. They do not have extra electrons or protons; the number of electrons in an isotope is the same as the number of protons, ensuring the overall charge is balanced.
Neutral atoms of the same element can differ in their number of what?
Neutrons. If the differ in electrons they are not neutral and if they differ in protons then they are no longer the same element as the number of protons determines the name of the element.
What is a description of an ion?
An ion is an element or compound with an overall charge on it. This means that it has extra electrons or are lacking in the amount of electrons it needs in order to achieve the perfect octet (or full valence shell). For example: Cl- is chlorine but with one extra electron.
When at atom is charged it is called an ion. How many electrons are in O2-?
O2- has gained two extra electrons, giving it a total of 10 electrons.
Why do charges flow in wires?
Electronic charges will flow when a potential difference between the two locations, and an adequate path between them exists (with a low enough dielectric constant to allow the flow of charge - such as a wire). Electrons will move from here to there because there are "extra" electrons here, and there's some "missing" electrons there. Electrons have a specific charge. If you have "extra" electrons at one location relative to "missing" electrons at another location, you will have a negative voltage here, and a positive voltage (relative to here) there. This is called a potential difference (or voltage difference).
Why silicon crystal are suitable for making a diode?
Silicon is useful as a base to build electronic components on because it has all the valence electrons it wants (4). A diode is created by placing a an element with an "extra" valence electron near an element that wants an "extra" valence electron.
What is called a group on the periodic table and what does it tell you?
A group is a vertical column on the periodic table. There are a total of 18 groups. They tell you how many electrons beyond an even eight that the elements have. For example, in group 1, each element has one more electron than an octet (9, 17, 25, etc). However, be careful! The transition metals (columns 4 through 12) do not follow this rule. The rule picks up again at group 13. Therefore, group 1: 1 extra electron, group 2: 2 extra electrons, group 13: 3 extra electrons, group 14: 4 extra electrons, etc.
How many electrons are in Au-200?
The atomic number of the element is equal to the amount of elections it has.
How many electrons are in a -2 anion that has 8 protons and 8 neutrons?
A -2 anion indicates that the ion has gained two extra electrons. Since there are 8 protons in the nucleus (8 electrons in a neutral atom), adding two extra electrons would give a total of 10 electrons in the anion.
What is term for a semiconductor that contains extra electrons?
N-type semiconductor contains extra electrons.
