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What is the strength of attraction between a nucleus and the outermost electrons?
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∙ 9y ago
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∙ 9y ago
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What is it called when electrons in the inner energy levels block the attraction between the nucleus and the valence electrons?
nuclear shielding
Which electrons are involved in bonding'?
At times the electrons involved in bonding are shared equally between the nuclei of two atoms and the bond is called a pure covalent bond. More often, however, the sharing is unequal and the electrons spend more time around the nucleus
What is the force of attraction that exists between all matter in the universe?
Gravity is the force of attraction whcih exists between all matter in the universe. Its strength is inversely proportional to the square of the distance between the two particles of matter.
What is the attraction and repulsion forces between subatomic particles?
attraction forces between the electrons of one atom and the nucleus of the other atom are balanced by the repulsive force caused by the two + charged nuclei as they are forced together~attractive forces have a little attraction for the atoms.
How IS The electronegativity trend relates to the first ionization energy trend?
Electronegativity and first ionization energy both increase going up the Periodic Table.
Why do force of attraction between nucleus and electrons decrease in alkali metal as increase in size?
As alkali metals increase in size, the distance of the outermost electrons from the nucleus increases. The attraction between the electrons and the nucleus is electrostatic, and it is a fundamental property of electrostatic attractions that the attraction decreases with increasing distance between the attracting charges. Another way of describing this is that the attractive force is partially "screened" by the inner electrons between the outermost electrons and the nucleus.
What is the difference between a valence electron and a shielding electron?
Valence electrons are electrons on the outermost shell/orbitals. Sheilding electrons are inner electrons that block valence electrons from protons causing less attraction.
Why does valence electron give up outermost energy easily?
The force of attraction between the atom's nucleus and its valence electrons are the least. Hence valence electrons are lost easily.
Why is the ionisation energy of fluorine higher than iodine?
The best modern answer would involve quantum chemistry, but an easier to understand explanation is that the outermost electrons in fluorine are much closer to the nucleus that provides the attraction to hold the electrons and nucleus together as an atom than are the outermost electrons in iodine. This is sometimes called the "screening effect" of inner shell electrons that weakens the attraction between the nucleus and the outer shell electrons in large atoms such as iodine.
Why does bigger size atom have more shielding effect?
The bigger the atom, the larger the number of electrons between the outermost energy level and the positively charged nucleus. As a result, the attraction between the electrons in the outermost energy level and the nucleus are slightly weaker, and so, the larger the atom, the greater the sheilding effect.
What is the difference between electrons and thermions?
free electrons drift away from atom's outermost shell because of loose force of attraction. but thermions are forced out of atom by heat energy. free electrons are responsible for flow of electricity whereas thermions are responsible for thermionic emission.
What is the Difference between electrons and thermion?
free electrons drift away from atom's outermost shell because of loose force of attraction. but thermions are forced out of atom by heat energy. free electrons are responsible for flow of electricity whereas thermions are responsible for thermionic emission.
How many electrons typically fill the outermost energy level of an atom?
The outermost energy level of an atom typically has between 1 and 8 electrons.
Is an attraction between atoms so electrons are shared a physical bond?
is an attraction between atoms so electrons are shared in a physical bond
What types of electrons are responsible for bonding between atoms?
Valence electrons, the are on the outermost layer of the atom
What electron forces exist between the nucleus and the outermost electrons?
The coulomb force is the dominant force between the electrons of an atom and the nucleus. It is the standard force of attraction between positive and negative charges. (Of course, the electrons also interact with each other also through the repulsive coulomb force expected of like charges.) The forces between the nucleus and the electrons is the same basic coulomb force fo all electrons, inner electrons or outer electrons or any electrons. (Of course, the type of force is the same but the strength of the force varies with distance being weaker for more distant electrons.) Essentially all of chemistry is determined by this simple inverse square force of attraction and repulsion. Other forces such as the force of gravity or the more exotic nuclear forces and electroweak interactions are so small as to be irrelevant except in special circumstances.)
How ionization energy is decreased in a group?
Moving down a group, the atomic radius increases because energy levels are being added with each period. So the outermost electrons are farther away from the positively charged nucleus, so the force of attraction between the nucleus and the outermost electrons is less. So it takes less energy to remove an electron.
