No. Xenon is not the first period of the periodic table. It is placed in the 5th period of periodic table.
Helium is in the first period of the periodic table.
Periods are the horizontal rows in the periodic table of Mendeleev; this table contain 7 periods.
Period 3 in the periodic table contains 18 electrons in total.
No , Iodine is placed in period-5 of the periodic table.
Copper is located in period 4 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.
Helium is in the first period of the periodic table.
Periods are the horizontal rows in the periodic table of Mendeleev; this table contain 7 periods.
Period 6 of the periodic table consists of 32 elements.
Period 3 in the periodic table contains 18 electrons in total.
Argon is in the period 3 of the periodic table. It is the third element in the 18th group of the periodic table.
Oxygen is in Period 2 , Group 16 ( VI A) of periodic table
There are three non-metals in the third period of the periodic table. They are oxygen, nitrogen, and fluorine.
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
Cesium is in period 6 of the periodic table.
No , Iodine is placed in period-5 of the periodic table.