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Why does the atomic number increase in a period when the size of atoms decreases?
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Why does atomic size increase from left to right across a period?
atomic size decreases across a period
How does Atomic Radius behave along the Periodic Table?
Atomic radius increases down a group due to increase in number of shells. Its value decreases along a period due to increase in nuclear charge.
What does atomic radius do across a period?
It decreases.
What are the period and group trends in electronegativites?
The trends from left to right in a period increase (nuclear charge), and moving down a group decreases (shielding).
Why electron affinity value decreases from top to bottom?
It decreases as you go down a group because the atomic radius increases, and the energy shells increase, so the attraction is less. also, the number of electrons going down a period also increase, so there is more repulsion, and its harder to add electrons.
An increase in the atomic number the atomic radius moving from left to right across a period.?
decreases
Why does atomic size increase from left to right across a period?
atomic size decreases across a period
Does atomic radius increase in a period?
decreases because of increased nuclear charge
How does Atomic Radius behave along the Periodic Table?
Atomic radius increases down a group due to increase in number of shells. Its value decreases along a period due to increase in nuclear charge.
Why do the atomic size decreases in periods rather than to be increased due to proton repulsion that leads to nucleus to expansion?
As we move across the period, there is an increase in the atomic number i.e., there is an increase in the number of protons inside the nucleus. This means, there is more nuclear force. This nuclear force pulls the electron orbits as close as it can. thus, the radius of the atom decreases. Hence the atomic size decreases.
Why do atom size decreases in periods instead of increasing due to protonic repulsion?
As we move across the period, there is an increase in the atomic number i.e., there is an increase in the number of protons inside the nucleus. This means, there is more nuclear force. This nuclear force pulls the electron orbits as close as it can. thus, the radius of the atom decreases. Hence the atomic size decreases.
Atomic size generally as you go down a group?
Atomic size generally increases as you go down a group
What accompanies an increase in atomic number within a specific period?
An increase in atomic number would be accompanied by a decrease in radius, and an increase in electronegativity.
What is the trend found in Period 3 on the Periodic Table as the elements increase in atomic number?
1-Atomic size = decreases 2-Ioniztion energy = increases 3-Electronegativity = increases (except Argon) 4-Metallic character = decreases 5-Melting point = first increases then decreases
How are the size of the elements effected on the periodic table?
Atomic size increase down the group and decreases across the period.
Does the atomic radius decrease as you move up a group and across a period from left to right on the periodic table?
the atomic radius decreses from left to right in periodic table due to increase in the number of succesive element the electrons of the outermost shell are more attracted towards nucleus and the atomic radius or atomic size decreases.
What does atomic radius do across a period?
It decreases.
