7
The Periodic Table has 7 periods and 18 groups.
groups
In the periodic table chemical elements are orderd in periods and groups.
In the modern day periodic table, the periodic table gets wider in periods two, four, and six.
The rows (Horizontal) are called Periods and the Columms (Vertical) are called Groups.
atomic number Chemical elements are organized in the form of the periodic table of Mendeleev, in groups and periods.
The periodic table has 7 periods on it.
The modern periodic table has seven periods.
there are 7 periods in the periodic table118
There are 7 periods in the modern periodic table.
Horizontal rows are termed as periods. There are 7 periods in periodic table.
Periods are the horizontal rows in the periodic table of Mendeleev; this table contain 7 periods.
There are 7 periods in the modern periodic table.
7 periods and 18 groups are there on the modern periodic table.
7The Periodic Table has 7 periods and 18 groups.
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.
There are a total of 18 groups on The Periodic Table of Elements.