Periods are horizontal.
Groups are vertical.
Just think group = up and down
period= right and left
The rows in the periodic table are called periods. There are 7 periods in periodic table.
Periods have same shells. There are 7 periods in periodic table.
rows. the vertical columns are called periods
Horizontal rows are called periods. There are 7 periods in periodic table.
Periods are the horizontal rows in the periodic table of Mendeleev; this table contain 7 periods.
The rows in the periodic table are called periods. There are 7 periods in periodic table.
Periods have same shells. There are 7 periods in periodic table.
The periodic table has 7 periods on it.
rows. the vertical columns are called periods
The modern periodic table has seven periods.
The horizontal rows on the periodic table are periods.
Periods are horizontal rows. 7 periods are present in modern periodic table.
The horizontal rows are referred as periods. There are 7 periods in periodic table.
7The periodic table has 7 periods and 18 groups.
Yes. the horizontal rows on the periodic table are called periods.
They are the horizontal rows in the periodic table
There are 7 periods in the modern periodic table.