Because noble gases are in the last column
The last element in each period is a noble element. It is non-reactive.
period
each row in the Periodic Table is called a period.
Each period of the periodic table ends with a noble gas because noble gases possess a full valence shell of electrons, which makes them chemically stable and largely inert. As elements are arranged in a period, they progressively gain electrons and protons, ultimately achieving a stable electron configuration at the end of the period. This stability is a key characteristic of noble gases, allowing them to act as a natural endpoint for the increasing atomic numbers in each period. Consequently, the last element in each period is a noble gas, signifying the completion of that period's electron filling.
each row in the Periodic Table is called a period.
The last element in each period is a noble element. It is non-reactive.
At the end of each period is a noble element. It is non-reactive.
a period
Period.
period
Each (horizontal) row is called a '''period''', whereas each (vertical) column is called a group.
Yes, the number of each period in the modern periodic table represents the number of electron shells (energy levels) that an atom's electrons occupy. Each period corresponds to a new energy level being filled by the electrons in the atoms of the elements in that period.
each row in the Periodic Table is called a period.
The period of an element in the periodic table refers to its horizontal row. Each period represents the number of electron shells an element's atoms have.
The period of an element in the periodic table indicates the energy level of its electrons. Each row in the periodic table represents a different period, with elements in the same period having the same number of electron shells.
Period
A horizontal row in the periodic table is called a period. There are seven periods in the periodic table, labeled from 1 to 7. Each period represents the energy levels of the elements within that row.