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Electronegativity changes from atom to atom because the force between the protons in the nucleus and the electrons in the outer shell changes from atom to atom. This changes because as you move from left to right on the Periodic Table each additional electron added is not dignificantly farther away from the nucleus but the charge in the nucleus increases so it attracts that electon with a greater force.
As you move from the top to bottom of the periodic table the electronegativity decreases because as you move from one period down to the next the energy levels of the outer electrons increase, and so does their distance from the nucleus. The farther away the electron from the protons the less force there is between them.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoElectronegitivity depends on atomic radius. The protons in a nucleus of an atom of a large atomic radius will have more difficulty attracting electrons than an atom of a small radius. This is because the farther away the nucleus is from electrons, the less attraction (and electronegitivity) it has.
Wiki User
∙ 13y agoElectronegativity decreases as you move down a group, the atoms are getting larger with more shielding, so there is less of an ability for it to attract electrons.
Wiki User
∙ 11y agoElectronegativity is a measure of the chemical reactivity; see a table at the link below.
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How does electronegativity change across the period?
Electronegativity increases across a period. The non metallic character also increases.
What attractive force draws in surrounding electrons for chemical bonds?
Electronegativity
What happens to electronegativity as you go across a period?
The electronegativity increases
How does electronegative change going down and across the periodic table?
Electronegativity increases across (left to right) the periodic table and decreases on going down.
What is the electronegativity of potassium?
.8 Is the electronegativity of Potassium
How does electronegativity change across the period?
Electronegativity increases across a period. The non metallic character also increases.
Does an elements electronegativity change when going within a period?
Yes electronegativity changes along a period. It increases along a period.
How does electronegativity change from left to right in a period within the periodic table?
Going Up
What attractive force draws in surrounding electrons for chemical bonds?
Electronegativity
What is lead's electronegativity?
Pauling electronegativity 2.33 Sanderson electronegativity 2.29 Allred Rochow electronegativity 1.55 Mulliken-Jaffe electronegativity 2.41 (sp3 orbital) Allen electronegativity no data
What is the temdency of an atom to attract electrons called?
electronegativity
What properties tells the most about stability of a metal?
You think probable to electronegativity.
When you move across the periodic table what happens to the electornegativity?
Electronegativity increases across the second and third periods or rows of the periodic table until the noble gases are reached; then electronegativity drops substantially. There is little change if any in electronegativity in the part of the higher numbered periods that represents transition metals, but the increase in electronegativity resumes in column 13 of these periods.
What happens to electronegativity as you go across a period?
The electronegativity increases
How does electronegative change going down and across the periodic table?
Electronegativity increases across (left to right) the periodic table and decreases on going down.
What is the electronegativity of potassium?
.8 Is the electronegativity of Potassium
What is the electronegativity of boron?
the electronegativity of boron is 2.04
