Periods are the horizontal rows in the Periodic Table of Mendeleev; this table contain 7 periods.
A period is a row in the periodic table of elements.
No. Xenon is not the first period of the periodic table. It is placed in the 5th period of periodic table.
Horizontal rows are termed as periods. There are 7 periods in periodic table.
It is in group 18 of the periodic table
period 3 elements in the periodic table have 3 electrons in there outher shell hence the name.
A period is a row in the periodic table of elements.
A period on the periodic table is a row.This is the horizontal section of the periodic table.
No. Xenon is not the first period of the periodic table. It is placed in the 5th period of periodic table.
Copper is in the fourth period of the Periodic Table.
Horizontal rows are termed as periods. There are 7 periods in periodic table.
It is in group 18 of the periodic table
There are 32 elements in the 6th period of the periodic table.
No , Iodine is placed in period-5 of the periodic table.
There are 8 elements in the third period of periodic table. The elements belong to group-1,2,13,14,15,16,17 and 18
There are 4 non-metals in the third period of the periodic table (Phosphorous, sulfur, chlorine, and argon)
period 3 elements in the periodic table have 3 electrons in there outher shell hence the name.
There are seven periods on the periodic table. The lanthanides are in period 6, and the actinides are in period 7.