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Because as you go down a group, with each additional period, an additional energy level is added. Each additional energy level is farther from the nucleus than the previous energy level.
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∙ 11y ago
Wiki User
∙ 7y agoThe number of electrons increase.
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What happens to the size of the atomic radius as you go down the noble gas family?
The atomic radius increase down, from helium to radon.
When you go left to right on the periodic table what happens to the atomic radius?
Yes. The atomic radius increases down the group. This is because number of shells increases down the group.
What is the trend in density as you go down the group of halogens?
The density increase down.
What is the ionic radius trend across a period?
Atoms increase in size as you go down a column and are larger going from right to left across a row.because while going from left to right in a period electrons enter in the same orbit and hence the attraction between the nucleus increasees
Why does the density of group 2 metals increase?
The density of group 2 metals increases as you go up the group. This is because atomic radius decreases as you go up the group. Density is mass / volume and the ratio of mass to volume of atoms of the elements goes up with the decrease in radius.
What trend in atomic radius do you see as you go down a group on the periodic?
The atomic radius of elements increases as you go down a group. This increase in radius as you go down a period is primarily caused by the increasing principal quantum number of the outer electron shells.
What happens to the group 1 elements as you go down the table?
As you go down group 1, the atomic number and atomic mass increase. Electronegtivity decreases and atomic radius increases.
Explain the large decrease in atomic radii as you move across a period from group 1 to group 14?
Atomic radius increases down the group due to increase in no.of orbits around the nucleus.
What happens to the radius of an atom as one goes down a group?
The radius will increase, this is because as you go down there are more electrons and they are put into progressivly larger orbitals so in effect the raidus increases.
How does the atomic radius change down a group in the periodic table?
because new shell are being added as we move down the group and the electron is being far away from the nucleus so the attraction bettween the nucleus and the electron is smaller It means that their is a less use of ionisation energy . Therefore, atomic radius increase down the group.
What happens to the size of the atomic radius as you go down the noble gas family?
The atomic radius increase down, from helium to radon.
What happens to the atomic radius within a group of elements?
Because as you go down the group the atomic number increase. And by that the number of electrons in the electron cloud increases, thus widening the atomic radii. ***************2nd Opinion**************** If that were true, then atomic radius would also increase as you move to the right in a series. The reason atomic radius increases going down a family is that each atom has electrons in a whole new energy level compared to the atom above it. For example, Group 1: The outer shells are 1s, 2s, 3s, 4s, 5s, 6s, 7s.
Does oxygen have a greatest atomic radius then sulfur?
Sulfer. The atomic radius increases as you go down a group.
How do the radii for anions and cations change as you go down a group?
In the groups 1-5 and 12-17 atomic radius increase down in group.In groups 6-17 the variation is irregular.
When you go left to right on the periodic table what happens to the atomic radius?
Yes. The atomic radius increases down the group. This is because number of shells increases down the group.
Why does the atomic radius increase as you go down the familY?
Because you have more electrons in the atom
How does the reactivity of group 1 metals change as you go down group 1?
The reactivity increase down in the group.
