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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.

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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.


How does the atomic radius increase or decrease horizontally on the periodic table?

Atomic radius decreases horizontally in periodic table. This is due to increase in nuclear charge.


What makes the atomic radius down a column of the periodic table?

The larger the highest energy level, the larger the atomic radius.


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 makes the atomic radius change down Column of the periodic table?

the larger the highest energy level number, the larger the atomic radius (Apex)


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 makes the atom radius change down a column of the periodic table?

The larger the highest energy level, the larger the atomic radius.


Which element will have a larger atomic radius magnesium or cesium?

Cesium will have a larger atomic radius than magnesium. This is because atomic radius tends to increase down a group in the periodic table, and cesium is located below magnesium in the periodic table.


Which has the larger atomic radius silicon or bromine?

Silicon has a larger atomic radius than bromine. This is because as you move down a group on the periodic table, atomic radius tends to increase. Bromine is located further to the right on the periodic table and has a smaller atomic radius compared to silicon.


What properties increase down the periodic table?

Atomic Mass


How does the atomic radius of argon compare to krypton?

The atomic radius of argon is smaller than the atomic radius of krypton. This is because as you move down a group on the periodic table, the atomic radius tends to increase due to the addition of extra electron shells. Argon is located above krypton in the periodic table, so it has a smaller atomic radius.


What happens to atomic radius as you move from bottom to top of the periodic table?

atomic radius decreases from bottom to top of the periodic table.