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Why the 1st ionization energy of Na is greter than mg?
Because Be contains more protons and thus has greater nuclear positivity which exerts a stronger attraction for its electrons which requires more energy to remove one of the electrons leading to a higher ionization potential.
Why is the first ionisation energy of hydrogen and oxygen the same?
The outer valence electron lies in a 1s orbital in Hydrogen. The effective nuclear charge of hydrogen can be taken as Z = 1. The electron that is being ionised in Oxygen lies in a 2p orbital which has an effective nuclear charge of Z = 8-(3.4 or 4.5 or something). The point is, this nuclear charge at a greater distance from the nucleus means the energies of the electrons are similar and so ionisation energis required are too similar.
Why oxygen is having two electron affinity?
First EA is usually exothermic as energy is released when the nucleus attarcts an electron is larger than the energy taken in to overcome their inter-electronic repulsion. Second EA is always endothermic since electron is added to a negative ion. Energy is needed to overcome the repulsion between the two negatively charged species.
What is most of the volume of an atom taken up by?
Most of the volume of an atom is taken up by the electron cloud, which consists of electrons moving around the nucleus. The nucleus, which contains protons and neutrons, is extremely small compared to the overall size of the atom.
How you can remove electron from atom?
Simplest method - apply a voltage to a conductor.
Is atoms with high ionization energy allow their electrons to be easily taken?
No, atoms with high ionization energy require more energy to remove an electron, making it difficult for them to lose an electron easily. The ionization energy is a measure of the stability of an atom and its tendency to lose an electron.
When an electron drops from a higher energy level to a lower energy level is it taken from the environment?
No, when an electron drops from a higher energy level to a lower energy level within an atom, the energy released in the form of a photon is given off by the electron itself, not taken from the environment. This process is known as emission.
Why the 1st ionization energy of Na is greter than mg?
Because Be contains more protons and thus has greater nuclear positivity which exerts a stronger attraction for its electrons which requires more energy to remove one of the electrons leading to a higher ionization potential.
Why is the first ionisation energy of hydrogen and oxygen the same?
The outer valence electron lies in a 1s orbital in Hydrogen. The effective nuclear charge of hydrogen can be taken as Z = 1. The electron that is being ionised in Oxygen lies in a 2p orbital which has an effective nuclear charge of Z = 8-(3.4 or 4.5 or something). The point is, this nuclear charge at a greater distance from the nucleus means the energies of the electrons are similar and so ionisation energis required are too similar.
Why oxygen is having two electron affinity?
First EA is usually exothermic as energy is released when the nucleus attarcts an electron is larger than the energy taken in to overcome their inter-electronic repulsion. Second EA is always endothermic since electron is added to a negative ion. Energy is needed to overcome the repulsion between the two negatively charged species.
What is most of the volume of an atom taken up by?
Most of the volume of an atom is taken up by the electron cloud, which consists of electrons moving around the nucleus. The nucleus, which contains protons and neutrons, is extremely small compared to the overall size of the atom.
What is the name of a photograph taken by an electron microscope?
Electron micrograph
How many valence electrons are needed to fill sodiums outer shell?
Sodium has ONE valence electron in its outer shell that is to be donated to any kind of oxidant. By then the outer (3rd) shell (of the Na+ ion) is EMPTY, so the 2nd shell has become the outmost, containing 8 electrons (Ne-configuration). No electrons at all are taken up by sodium.
What is the photograph taken from using an electron microscope called?
The image taken from an electron microscope is called an electron micrograph or simply a micrograph. It provides a highly detailed and magnified view of the specimen being studied.
Does cesium have a greater 1st ionization energy than aluminum?
As you go ACROSS a PERIOD (row) IE INCREASES. As you go DOWN a GROUP (column) IE DECREASES. Caesium is down there right above francium. So his little electron is okay with being taken away because he's so far from the nucleus (everyone likes the nucleus, but the other electrons are in the way [this is called 'shielding'] and the attraction is much smaller.) Meaning it'll take a SMALL ionization energy to take it away. Aluminum also has only 1 electron in it's orbital, but it's MUCH MUCH closer to the nucleus, so it's much more attracted. It'll take a HIGH ionization energy to take it away. First level ionization energy of aluminium: 577,5 kJ/mol First level ionization energy of caesium: 375,7 kJ/mol
How you can remove electron from atom?
Simplest method - apply a voltage to a conductor.
What an electron transport chain?
in this step the energy carried by electrons is used to synthesize (ATP). In electron transport chain NADH and FADH2 realese electrons and hydrogen ions. These electrons are taken up by a series of electron carriers. When electrons move through the series of electron carriers they lose electrons and hydrogen ions combine with moleculaer oxygen to form water.
