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Why isoelectronic ion with higher positive charge has smaller size?
Wiki User
∙ 13y ago
The traditional explanation for this is that the electrostatic attraction of the electrons to the nucleus of an atom is reduced by repulsion of the other electrons present in an atom without positive charge. If an isoelectronic ion has a positive charge, the effect of repulsions is reduced because of the smaller number of electrons, and the resulting stronger attraction to the positively charged nucleus pulls the outer electrons closer. However, all such questions about the properties of atoms should preferably be answered in a purely mathematical manner by quantum mechanics.
Wiki User
∙ 13y ago
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When electrons feel an increasing positive charge do they have a higher or lower energy?
lower energy
What is a hard and soft acid?
The term hard and soft acid is a qualitative one which refers to the polarizability of the acid (and typically refers only to Lewis acids). A soft acid is one that is highly polarizable, whereas a hard acid is one that is not polarizable.For more information, and a list of many examples of hard and soft acids, see the Web Links to the left.
The structure of water causes hydrogen to have a positive or negative charge?
Positive. Since the Oxygen atom has a higher electronegativity (it is more likely to draw in electrons) than the Hydrogen atoms, the electrons that are shared in the two oxygen/hydrogen bonds will move closer to the Oxygen atom. This will give the Oxygen atom a slightly positive charge and the 2 Hydrogen atoms a slighty negative charge. Because of this, a water molecule is considered polar.
What must happen to a positively charged object in order to become neutral?
That depends on the strength of the positive charge. If I have an atom of gold that has been ionized so that it has a charge of +2, I can neutralize that charge by bombarding the atom with a stream of electrons until it has captured two electrons. If it captures more than two, I could bombard it with a proton stream, which would neutralize it as well as change the atoms atomic number, thereby changing the element that the atom comprises. The higher the positivity, the more electrons you will need to cancel the charge out.
Which ions electrical charges oppose the direction of movement that is caused by their concentration gradient?
Any ion that is positive but has a higher concentration inside the cell or is negative and has a higher concentration outside the cell. Any ion that is positive but has a higher concentration inside the cell or is negative and has a higher concentration outside the cell.
How strong is the charge of a proton?
Proton is the positive charge of an atom. So obviously it has a higher charge that electron (negative) and neutron (neutral).
What is the difference between neutrons and protons?
protons have a positive charge and neutrons have no charge...
Why the current flow from higher potential to lower potential?
Current defined as Positive charge flow , flows from higher potential to the lower. Current defined as electron flow, flows from lower potential to higher. In general Potential and Current are defined by positive charge.
What is the definition for positive charge?
having a deficiency of electrons ;having a higher electric potential
When electrons feel an increasing positive charge do they have a higher or lower energy?
lower energy
Are negative numbers higher than normal numbers?
What do you mean by "higher?"They are smaller than positive numbers since they are to the left of positive numbers on the number line.Beyond that, not sure what you mean.
Is a positive ion smaller or larger than its parent atom?
A positive ion is smaller than its parent atom because it has less electrons than its parent atom. The reduced number of electrons are then pulled more tightly to the positive nucleus because the number of protons remains the same, and these now exceed the electrons in number.
Does atoms have higher number of positive charges than negative charges?
Atoms are neutral, therefore having an equal amount of protons (1 positive charge) and electrons (1 negative charge). eg. 7 electrons= 7 protons
Why proton is positively charged?
I am going to borrow heavily from the answer to "Why do electrons have a negative charge?" Protons have a positive charge because the charge is part of what the particle is made of. If it were possible to remove the positive charge from the proton we would then have a neutron.
What is a hard and soft acid?
The term hard and soft acid is a qualitative one which refers to the polarizability of the acid (and typically refers only to Lewis acids). A soft acid is one that is highly polarizable, whereas a hard acid is one that is not polarizable.For more information, and a list of many examples of hard and soft acids, see the Web Links to the left.
Why doesn't Ammonium ion behave as an electrophile?
because it attains a positive charge because of the higher valency. such molecules r not electrophiles.....
How sncl4 more covalent than sncl2?
The halides in higher oxidation state posses high charge and are smaller in size as compared to the lower oxidation state halides.Thus, in higher oxidation halides the charge/radius ratio is higher which contribute to the increase in polarisation and consequently these are more covalent.(--AK)
