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Why the protons in the nucleus have less repulsion than electron?
Wiki User
∙ 10y ago
Because they are farther away from the nucleus than protons, and they have more freedom as in where to move, because they fly around the nucleus in no particular order.
Wiki User
∙ 14y ago
Wiki User
∙ 10y agoWithin a nucleus of atom protons exist along with neutrons (Except Ordinary hydrogen atom) and they have a short range attractive forces which overcome the repulsion between protons.
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Why atoms with larger atomic number are unstable?
Atoms with larger atomic numbers have more protons in their nucleus. This results in increased electrostatic repulsion between the protons, making the nucleus less stable. Additionally, larger atoms have more electrons, which increases the likelihood of electron-electron repulsion. These factors contribute to the overall instability of atoms with larger atomic numbers.
Of elements in the same group those at the top of the periodic table have higher ionization energies because?
C.their atomic radius is small D.layers of electron shells shield the protons' attractive force fewer layers of electron shells create less shielding of the protons' attractive force
The fewer electron shells the shielding of electrons from the nucleus.?
less
What are the three parts of the Quantum Mechanical Model of an Atom?
Protons, neutrons, and electrons. Protons and neutrons are the baryons present in the nucleus. Protons have a positive charge, and a mass of approx. 1 amu. Neutrons have no charge, and a mass of approx. 1 amu. Electrons are leptons with negative charge and negligible mass, and are found in orbitals outside the nucleus. Not all atoms have neutrons (such as in the case of hydrogen-1). Variation in electron number defines the ionization state of the atom (more electrons than protons gives a negative ion, less electrons than protons gives a positive ion). Proton number separates one element from another.
How is the concept of effective nuclear charge used to simplify the numerous electron- electron repulsions in a many electron atom?
a) How is the concept of effective nuclear charge used to simplify the numerous electron-electron repulsions in a many-electron atom?Effective Nuclear Charge- the (net) positive charge experienced by an electron in a many electron atom. This charge is not the full nuclear charge. It accounts for the shielding of the nucleus by other electrons in the atom.The nucleus is surrounded by electrons. These electrons are shielded from the nucleus by electron repulsions. The effective nuclear charge is less than the actual nuclear charge because the repulsions of the electrons needs to be taken into account.This is done in the equationZeff = Z (protons) - S (screening constant, the inner core amount of electrons)b) Which experiences a greater effective nuclear charge in a Be atom, the 1s electrons or the 2s electrons?The 1s electrons would have a greater nuclear charge. The number of electrons between the 1s electrons and the nucleus is less than the number of electrons between the 2s electrons and the nucleus. This means the screening constant is larger. When you subtract the larger amount of electrons from the amount of protons, 4, the difference will be less, meaning the value of the effective nuclear charge will be less.
The force of repulsion between protons in the nucleus of small atoms is?
Less than
Why atoms with larger atomic number are unstable?
Atoms with larger atomic numbers have more protons in their nucleus. This results in increased electrostatic repulsion between the protons, making the nucleus less stable. Additionally, larger atoms have more electrons, which increases the likelihood of electron-electron repulsion. These factors contribute to the overall instability of atoms with larger atomic numbers.
Why you can not squish the atom?
Squish means extracting out the material inside by pressing it ..... just because atom has a nucleus in which there present neutrons (charge-less) and protons (positively charged). protons have strong electrostatic forces of repulsion between them that makes them cover a certain area which make nucleus...around nucleus there are electrons revolving around. having negative charge on them attracted by the nucleus...but electron also have a strong fore of repulsion among themselves which force them to cover the area....due to the presence of these forces it is impossible to squish an atom.
Is the nuclear force a force of attraction or repulsion or both?
It is only attractive in nature. I am not sure which nuclear force you talk about. Electrical forces of the nucleus are repulsive to the positively charged. There are "strong forces" and the like which are attractive.
Does alpha particles have less mass the beta particles?
An alpha particle is two protons and two neutrons (same as a Helium nucleus) so when a nucleus ejects an alpha it will defintely have less mass. Also it will be a new element because it has two less protons.
The stronger force between protons and neutrons in a small nucleus and a larger nucleus?
In a small nucleus, such as oxygen, xenon, or any of the lighter elements, the strong force generated by the protons and neutrons is stronger than the repulsion between protons, and the nucleus holds together. In a larger nucleus, such as uranium, curium, or the heavier elements, the strong force isn't strong enough to hold it together, and the electromagnetic force pulls it to pieces.
Of elements in the same group those at the top of the periodic table have higher ionization energies because?
C.their atomic radius is small D.layers of electron shells shield the protons' attractive force fewer layers of electron shells create less shielding of the protons' attractive force
The fewer electron shells the shielding of electrons from the nucleus.?
less
Have about 1800 times less mass than protons and neutrons?
Electrons have ~1800 times less mass than protons and neutrons
Why are alkali metals extremely reactive?
There is only one electron in the outer most electron shell. With the lighter (less massive) alkali metals, there are less electron shells, between the outer most electron and the nucleus. Since the nucleus is positive(Protons) it more strongly holds the outer most electron. However, when going down the Alkali (Group 1) metals there are more electron shells, so the outer most electron is further away from the nucleus, and thereby less strongly held. This is evidenced by Lithium (The least massive) which only slowly effervesces in water. At the bottom of the group Francium ( The most massive) is explosive in water. NB Francium is not used in the open laboratory because it is also radio-active.
When an alpha particle is emitted the nucleus of the original element?
An alpha particle is a helium-4 nucleus, and contains two protons and two neutrons. Therefore, the original nucleus will have two protons and two neutrons less. Its atomic number will be two less, and its atomic mass will be 4 less.
Do electrons have the mass as protons?
Protons are part of the nucleus, so they have less mass than the nucleus (except in the specific case of hydrogen, where the nucleus is a single proton so they have the same mass).Electrons are much less massive than protons. It would take 1836 electrons to equal the mass of one proton.Neutrons are very slightly more massive than protons, by just about the mass of an electron. They're close enough that they're generally treated as having essentially the same mass.
