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Does the addition of two electrons or removal of one electron require more energy for an oxygen atom?
when adding two electrons to the oxygen atom yep! it requires more energy because it has to take them from another atom so it will be removing an electron using more ionization energy to do the work.and we must remember that oxygen needs two electrons to attain its valency then it needs to take two from another atom to be fully filled and without the two electrons it will still lack electron to be stable.this means adding or removing requires energy.
What else can I help you with?
Why is usually only one electron removed from an atom?
An electron has several shells with electron. When these shells are completely filled, the most outer shell doesnt relatively feel much attraction of the electrons towards the nucleus. Therefore it is possible that one electron gets out of the shells. If this is done, the atom has too little amount of electrons, it needs one more. The attraction force is then increased, which means it takes a lot of more energy to remove the second electron, let alone the third
Which steps in aerobic cellular respiration require oxygen?
The citric acid cycle and the electron transport chain are the steps in aerobic cellular respiration that require oxygen. Oxygen is the final electron acceptor in the electron transport chain, where it helps generate ATP by facilitating the transfer of electrons from NADH and FADH2 to oxygen.
Why does the separation of an electron from the neutral atom require more enery than the separation of an electron from the anion?
An explanation is via the electron cloud. In a neutral atom, equal number of electrons and protons means a stable separation of electrons from the nucleus and each electron is repulsed by the adjacent electrons at a stable distance. When one electron is removed forming an anion, the electron cloud will move closer to the nucleus because of lower electron repulsion (fewer competitors), and each electron is held more strongly by the protons. Since the force of attraction of proton-electron is stronger than before, removing the second electron will require even more energy than removing the first electron. ==========================
How many valence electrons do the halogan have?
The halogens are the group seven, the group right before the noble gases. They require 1 electron for a full outer shell. So they have 7 valence electrons. (s2 px2 py2 pz1)
How Which element require the greatest amount of energy to remove an electron?
Core electrons. Probably the 1s level would require the most ionization energy to pull these electrons.
Why is usually only one electron removed from an atom?
An electron has several shells with electron. When these shells are completely filled, the most outer shell doesnt relatively feel much attraction of the electrons towards the nucleus. Therefore it is possible that one electron gets out of the shells. If this is done, the atom has too little amount of electrons, it needs one more. The attraction force is then increased, which means it takes a lot of more energy to remove the second electron, let alone the third
Which steps in aerobic cellular respiration require oxygen?
The citric acid cycle and the electron transport chain are the steps in aerobic cellular respiration that require oxygen. Oxygen is the final electron acceptor in the electron transport chain, where it helps generate ATP by facilitating the transfer of electrons from NADH and FADH2 to oxygen.
Why does the separation of an electron from the neutral atom require more enery than the separation of an electron from the anion?
An explanation is via the electron cloud. In a neutral atom, equal number of electrons and protons means a stable separation of electrons from the nucleus and each electron is repulsed by the adjacent electrons at a stable distance. When one electron is removed forming an anion, the electron cloud will move closer to the nucleus because of lower electron repulsion (fewer competitors), and each electron is held more strongly by the protons. Since the force of attraction of proton-electron is stronger than before, removing the second electron will require even more energy than removing the first electron. ==========================
Does an electron microscope need electricity?
Yes, electron microscopes require electricity to operate. They use electrons to generate images at a very high resolution, which requires a high voltage electrical source to accelerate the electrons. Without electricity, an electron microscope would not be able to function properly.
What part of the atom is able to be lost or gained?
the energy is require to remove an electron from an atom (ionization energy) but when electron is absorbed in an atom energy is released (electron affinity) however 2nd electron affinity is endothermic ,energy is require.
Why do elements in group 17 have an oxidation number of -1?
Elements in group 17 (halogens) have seven valence electrons and tend to gain one electron to achieve a full outer shell of eight electrons, resulting in an oxidation number of -1. This electron gain corresponds to achieving the stable electron configuration of a noble gas.
What type of bond would two sulfur atoms require to a from a molecule?
Two sulfur atoms would require a covalent bond to form a molecule. Covalent bonds involve the sharing of electrons between atoms to achieve a stable electron configuration. In the case of two sulfur atoms, they would share electrons to complete their outer electron shells and form a stable molecule.
Why doesn't the sodium atom gain 7 electrons so that its third shell becomes the filled outermost shell?
Atoms with 1 electron on outer shell loses the electron more easily.Atoms with 7 electrons on outer shell gain an electron more easily.Metal and non-metals bond ionically, so one loses electrons; one gains electrons. So everything is going towards that outcome.
Does electron pairing require energy?
no it does not require energy.
What group in the periodic table gains electrons most readily and why?
The halogens (Group 17) gain electrons most readily because they only need one more electron to complete their outer electron shell and achieve a stable configuration. This makes them highly reactive and likely to form negative ions by gaining an electron.
How many valence electrons do the halogan have?
The halogens are the group seven, the group right before the noble gases. They require 1 electron for a full outer shell. So they have 7 valence electrons. (s2 px2 py2 pz1)
Meaning of non bonding electron bond?
As a start: Electrons that are not share between atoms. covalent bonds along with pie bonds require two electrons per bond. the two electrons in the bond are shared electrons or bonding electrons. Atoms such as oxygen and nitrogen have electrons that are not part of a bond. Oxygen is in group VI so it wants to have 6 electrons around it. it gets 2 of its electrons from bonds. the other 4 come from non bonding electrons or two pair of electrons. Nitrogen is in group V so it only wants 5 electrons. Thus, it has three bonds and one non bonding electron pair.
