Increases vertically as you add new shells, decreases horizontally because you have more protons in the nucleus
The number of shells in periodic table increase down the group, i.e., vertically.
Iodine. (Always remember, groups go horizontally, periods go vertically) -Ali, Muhammad.
The atomic radius decrease from left to right in the periodic table.
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Electronegativity increases from left to right across a period and decreases down a group.
Atomic radius decreases horizontally in periodic table. This is due to increase in nuclear charge.
Horizontally: decreasing from left to right.Vertically: increasing from top to bottom.
On the Periodic Table of elements, elements that align horizontally are said to be in the same row, and objects that align vertically are said to be in the same group.
The number of shells in periodic table increase down the group, i.e., vertically.
There are NO vertical ROWS, because rows run horizontally, and COLUMNS run vertically. There are 18 vertical columns in the periodic table.
vertically they're called groups and horizontally periods
Iodine. (Always remember, groups go horizontally, periods go vertically) -Ali, Muhammad.
Periods are horizontal.Groups are vertical.Just think group = up and downperiod= right and left
From right to left (1- 18) on the periodic table. Instead of up and down (1-7) periods go vertically. (rows) groups go horizontally. (columns)
Protons gradually increase or decrease.
The atomic radius decrease from left to right in the periodic table.
Increases.