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.
The last element in each period is a noble element. It is non-reactive.
Argon (Ar, element number 18) is the last element in the third period of the periodic table.
its the 4th period
period 6
The period of an element is determined by electronic configuration.Period is same as the number of energy levels of the element.
The last element in each period is a noble element. It is non-reactive.
The reason Argon is the last element in its period is that it has the highest atomic number in its period, and that's the way all periods are arranged.
The horizontal rows are called periods. Krypton (atomic number 36) is the last element in the period 4.
Since argon is the last element in its period, it is a noble gas. This means that it has a full outer shell of electrons (specifically a full p orbital), and is not very reactive (at all).
Because it has completely filled valence orbitals.
No that does not mean that it means that your period this time was not as long asit normall is
you mean atomic number and it is 28
Then it probably isn't your period. Sounds like spotting
Argon (Ar, element number 18) is the last element in the third period of the periodic table.
Helium is a period 1 element.
Nothing . It happens.
Last menstrual period