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Steve
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Laono,the vertical columns in Periodic Table are called groups.the groups are numbered by roman numerals.while the horizontal rows are called periods.
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The horizontal rows in a periodic table are called groups?
Actually, the horizontal rows in a periodic table are called periods, not groups. Groups are the vertical columns that share similar chemical properties.
What are the horizontal rows elements called on a periodic table?
The horizontal rows are periods on periodic table. There are 7 horizontal rows in modern periodic table.
What is the definition of a column in the periodic table of elements?
A vertical column is called a 'group.' A horizontal row is called a 'period,' thus the periodic table.
What are vertical and horizantal columns on the periodic table called?
Vertical columns are called groups. Horizontal rows are known as periods.
What are the horizontal collum called in the periodic table?
There seems to be a typo in your question. If you meant a "horizontal row" (left to right) of the periodic table, those are called periods. If you meant a "vertical column" (up and down) of the periodic table, those are called groups.
