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Why alkali metals give deep blue colour when react with ammonia liquid?
Alkali metals react with ammonia liquid to form metal amides and ammoniated electrons. These ammoniated electrons are responsible for absorbing energy from visible light, leading to a deep blue color in the solution. This phenomenon is known as charge transfer complexes.
Why are solid metals really good conductors?
Metals are made up of atoms which are joined together tightly in a the solid state. Metals are having free electrons around atoms which are the ones that carry the heat energy or electrical energy for one end to the other.
Why metals are good conductors of electricity give at least 4 reasons?
Metals are good conductors of electricity because :- 1.Metals they have free electrons which contribute in conduction of electricity. 2.Interms of energy bands metals they have no forbidden gape between conduction band and valence band, hence create easy overlapping of electrons from the valence band to conduction band. 3.Metals are ionizing by loosing electrons in their outermost shell so they can give out electrons, as a result of having the habit of conducting electricity because of these free electrons. 4.All metals are solid with great thermal capacity and low impurities, this feature gives all metals to be used as utensils as well as electric wires, since all metals are good conductors of heat and electricity.
In which energy level are the electrons with the least energy located?
The maximum number of electrons that can occupy a specific energy level can be found using the following formula:Electron Capacity = 2n2The variable n represents the Principal Quantum Number, the number of the energy level in question.
Do Aluminum has the greatest number of valence electrons?
Far from it. Aluminum has 3 valence electrons. The highest number is 8, which the noble gases other than helium have (helium has only 2). Metals can have 1, 2, or 3 valence electrons, so aluminum has the greatest number that an element can have if it is a metal. Once you get to 4 valence electrons (which the element carbon has) you are in the nonmetal range.
Do metals and non metals become more chemically stable when they fill or empty their outermost energy levels?
When they fill their outermost energy levels. Metals will WANT more electrons and Non-Metals will have EXTRA electrons to give. So in a way, Metals will actually fill their outermost energy levels while Non-Metals will empty them; all with the goal of having a FULL valency shell which is stable. This is the basis for ionic bonding.
According to the particle model of light certain kinds of light cannot eject electrons from metals because?
they do not possess enough energy in their individual particles, known as photons, to overcome the work function of the metal and eject electrons. The energy of the photons is directly related to their frequency, with higher frequency light having greater energy. This is why only light with sufficient energy, typically ultraviolet or higher frequency, can eject electrons from metals in the photoelectric effect.
How many electrons are in the outer energy level of the atoms of alkali earth metals?
Alkali earth metals have 2 electrons in their outer energy level. This outer level is known as the valence shell, and having 2 electrons makes these metals highly reactive and likely to form ionic bonds to achieve a full outer shell of 8 electrons.
What kind of elements has less than 4 valence electrons?
Boron group, transition metals, alkaline earth metals and alkali metals are listed in the Periodic Table are having less than four valence electrons
Why alkali metals give deep blue colour when react with ammonia liquid?
Alkali metals react with ammonia liquid to form metal amides and ammoniated electrons. These ammoniated electrons are responsible for absorbing energy from visible light, leading to a deep blue color in the solution. This phenomenon is known as charge transfer complexes.
Why are solid metals really good conductors?
Metals are made up of atoms which are joined together tightly in a the solid state. Metals are having free electrons around atoms which are the ones that carry the heat energy or electrical energy for one end to the other.
When metals form ions they tend to do so by?
When metals form ions, they tend to do so by losing their electrons to gain a positive charge. Losing negatively charged electrons causes the metals to become more positive due to having more protons.
Why are Metals are often referred to as electropositive?
Why metals are electron positive in nature?Because by having an octet as their outer electron shell they will become more stable. For metals it's easier to shed electrons to achieve an octet than it is to achieve it by gaining them.
Why metals are good conductors of electricity give at least 4 reasons?
Metals are good conductors of electricity because :- 1.Metals they have free electrons which contribute in conduction of electricity. 2.Interms of energy bands metals they have no forbidden gape between conduction band and valence band, hence create easy overlapping of electrons from the valence band to conduction band. 3.Metals are ionizing by loosing electrons in their outermost shell so they can give out electrons, as a result of having the habit of conducting electricity because of these free electrons. 4.All metals are solid with great thermal capacity and low impurities, this feature gives all metals to be used as utensils as well as electric wires, since all metals are good conductors of heat and electricity.
In which energy level are the electrons with the least energy located?
The maximum number of electrons that can occupy a specific energy level can be found using the following formula:Electron Capacity = 2n2The variable n represents the Principal Quantum Number, the number of the energy level in question.
Explain of where electrons might be found in atom?
Electrons are found in regions around the atomic nucleus known as electron shells or energy levels. These shells are organized based on the energy of the electrons they contain, with the innermost shells having lower energy levels and the outermost shells having higher energy levels. Within each shell, electrons move in specific orbitals or pathways.
What is aufba rule?
Electrons will occupy orbitals having the lowest energy first, and then in order of increasing energy.
