The eleventh period doesn't exist.
Elements in the 11th group are.Cu,Ag,Au. Out of them, Ag is in the 5th period. Ag is a metal element in the d block.
Sodium is the eleventh element on the periodic table.
The eleventh element on the periodic table is sodium, with the symbol Na. It has an atomic number of 11 and is a soft, silvery-white metal that reacts vigorously with water. Sodium is commonly found in salt and various other minerals.
Helium is a period 1 element.
Sodium is the eleventh element because it has 11 protons in its nucleus. In the periodic table, elements are arranged in order of increasing atomic number, which is determined by the number of protons in the nucleus. Sodium's atomic number of 11 places it in the eleventh position in the periodic table.
He is in period 1.
That is not true. The first element in a period may be active or inactive, depending on the specific electron configuration of the element. For example, the first element in period 1, hydrogen, is not considered an active element.
The element neon is in period 2. Classified as a non-metal. :)
The element in period 4 of the Periodic Table with the highest electronegativity is krypton (2.96). The period 4 element with the lowest electronegativity is potassium (0.82).
its the 4th period
period 6
On the Periodic Table, a Period is one of the horizontal rows. If an element is last in it's period, then it's on the right hand side of the Periodic Table. There is an inert gas at the end of every Period.