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Electronic affinity increases as you move up a group, because going up a group there are fewer energy levels that stand between the postively charged nucleus and the outer level electrons. This doesn't really come into play as much as the trend moving across periods though. Electron affinity goes up left to right across a period, because as you approach the non-metals, the desire for atoms to gain electrons to satisfy the octet rule/achieve noble gas configuration goes up. By the time you reach the halogens (group 17), that affinity is very high, which makes the halogens the most reactive non-metals.

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11y ago
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11y ago

along the period increase electronegativity

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12y ago

If you pay attention the Periodic Table is in numeric order starting in the top left and ending bottom right.

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Q: Why does the number of electrons increase as you go from top to bottom of the periodic table?
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How are elements arranged on the periodic table in order of electrons?

The number of electrons in the atom increase from left to right and then from top to bottom.


What number of remains the same from the top to bottom in a group in the periodic table?

valence electrons


What happends to the valence electrons is they are moved from left to right in the periodic table?

Valence electrons increase in number on moving from left to right on the periodic table. another question might be


How do you use a periodic table?

You use a Periodic Table to find the group, period, and the material of the 115 elements. You can find the the number of protons/electrons on the bottom of the symbols(which is arranged in oder). You can the mass number on the VERY bottom of the element's block. You can find out the number of neutrons by subtracting the number of protons/electrons from the mass number.


Why the atomic radius increase in column of periodic table?

As you go down the columns of the periodic table the number of protons (and electrons) in the element increase. As the atomic number increases, so does the radius at each electron shell.

Related questions

How are elements arranged on the periodic table in order of electrons?

The number of electrons in the atom increase from left to right and then from top to bottom.


What determines the number of electrons found in each period In the periodic?

there are more electrons in the elements on the bottom of the table.


What number of remains the same from the top to bottom in a group in the periodic table?

valence electrons


What happends to the valence electrons is they are moved from left to right in the periodic table?

Valence electrons increase in number on moving from left to right on the periodic table. another question might be


How do you use a periodic table?

You use a Periodic Table to find the group, period, and the material of the 115 elements. You can find the the number of protons/electrons on the bottom of the symbols(which is arranged in oder). You can the mass number on the VERY bottom of the element's block. You can find out the number of neutrons by subtracting the number of protons/electrons from the mass number.


Why the atomic radius increase in column of periodic table?

As you go down the columns of the periodic table the number of protons (and electrons) in the element increase. As the atomic number increases, so does the radius at each electron shell.


What remains the same from top to bottom in a group in the periodic table?

The number of valence electrons remains the same


What happens to the atomic size from the top of the periodic table to the bottom?

The atomic size increase from top to bottom of Periodic Table. As the number of shells increases from top to bottom, the atomic size increases.


What happens to the atomic size from the top to the bottom of the periodic table?

The atomic size increase from top to bottom of periodic table. As the number of shells increases from top to bottom, the atomic size increases.


When you read the periodic table top to bottom the number of electron energy level increase or decrease?

Increases.


What are electrons on a periodic table?

Periodic table lists the elements in the increasing order of atomic number. Atomic number = Number of protons = Number of electrons


Towards the bottom of the periodic table does the atomic mass increase or decrease?

Towards the bottom, atomic mass increases. Atomic number also increases.