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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.
What else can I help you with?
how does it compares atomic radius francium or cesium?
Francium has a larger atomic radius than cesium as you move down the periodic table within the same group. This is because as you move down a group, the number of energy levels or shells increases, leading to a larger atomic radius. Therefore, Francium, being further down Group 1, has a larger atomic radius compared to cesium.
What is the periodic trend for atomic size from top to bottom in a group?
Atomic size generally increases from top to bottom within a group on the periodic table. This is because each successive element has an additional energy level of electrons, leading to increased electron-electron repulsion and an overall increase in atomic size.
What physical trends for atomic number versus covalent radius?
As the atomic number increases within a period (row) on the periodic table, the covalent radius generally decreases due to increasing nuclear charge pulling the electrons closer to the nucleus. Within a group (column), as the atomic number increases, the covalent radius tends to increase since new electron shells are being added, leading to a larger atomic size.
Why is there a pattern between the atomic radius and melting points within alkaline earth metals or period 2 metals?
The pattern between atomic radius and melting points in alkaline earth metals or period 2 metals is due to the relationship between the attractive forces within the atoms (which decrease with larger atomic radius) and the intermolecular forces that hold the atoms together in the solid state. As atomic radius increases, the intermolecular forces become weaker, making it easier for the metal to melt at a lower temperature.
In general the atomic radius of an atom as you move down a column in the periodic table?
Decreases. Look at the images under atomic radius, on wikipedia.
Which of these describes atomic radii as one moves from top to bottom within a group?
The atomic radius increases from top to bottom within a group.
how does it compares atomic radius francium or cesium?
Francium has a larger atomic radius than cesium as you move down the periodic table within the same group. This is because as you move down a group, the number of energy levels or shells increases, leading to a larger atomic radius. Therefore, Francium, being further down Group 1, has a larger atomic radius compared to cesium.
How does the atomic radius change from top to bottom in a group 1 and 2 in the periodic table?
Going down and to the left on the periodic table, atomic radius increases. Therefore, the smallest atomic radius is that of Helium (He), and the largest is that of Francium (Fr). Coincidentally, these are also the most and least reactive elements.
What is the periodic trend for atomic size from top to bottom in a group?
Atomic size generally increases from top to bottom within a group on the periodic table. This is because each successive element has an additional energy level of electrons, leading to increased electron-electron repulsion and an overall increase in atomic size.
What physical trends for atomic number versus covalent radius?
As the atomic number increases within a period (row) on the periodic table, the covalent radius generally decreases due to increasing nuclear charge pulling the electrons closer to the nucleus. Within a group (column), as the atomic number increases, the covalent radius tends to increase since new electron shells are being added, leading to a larger atomic size.
Within a period what happens to the atomic radius you go down the column?
The atomic radius generally increases as you move down a column in the periodic table. This is because each successive element has an additional energy level, leading to larger orbits for the electrons and an overall increase in atomic size.
What happens to atomic radius when an anion forms?
When an anion forms, its atomic radius increases. This occurs because the addition of one or more electrons to the atom increases electron-electron repulsion within the electron cloud, causing the cloud to expand. As a result, the overall size of the ion becomes larger than that of the neutral atom.
Given any two elements within a group is the element with the larger atomic number likely to have a larger or smaller atomic radius than the other element?
The atomic radius decreases across a period from left to right and increases down in a given group. That means that since the lower the element is in a group, the larger the atomic radius will be. The atoms with the largest atomic radii are located in Group I and are at the bottom of groups.
Why is there a pattern between the atomic radius and melting points within alkaline earth metals or period 2 metals?
The pattern between atomic radius and melting points in alkaline earth metals or period 2 metals is due to the relationship between the attractive forces within the atoms (which decrease with larger atomic radius) and the intermolecular forces that hold the atoms together in the solid state. As atomic radius increases, the intermolecular forces become weaker, making it easier for the metal to melt at a lower temperature.
How do you rank configurations by atomic radius?
Nuclear radius increases as you go down and to the left on the periodic table due to effective nuclear charge. Bassicaly, it means that sheilding of electrons by larger atoms having more things in the way that blocks the ability of the nucleus to pull on the electrons, thus the electrons are able to be further from the nucleus and have a larger radius.
In general the atomic radius of an atom as you move down a column in the periodic table?
Decreases. Look at the images under atomic radius, on wikipedia.
What is the process that results in the increase of atomic number?
The process that results in the increase of atomic number is nuclear fusion. This occurs when two atomic nuclei combine to form a heavier nucleus, leading to an increase in atomic number. Nuclear fusion is the process that powers the sun and other stars.
