24 янв. 2018 г. · Period number tells us how many electron shells, or orbits, or energy levels an element has. Nothing more. What are the periods and groups of the periodic table ... - Quora What is a period number on the periodic table? - Quora What do the numbers on a periodic table mean? - Quora What determines the number of elements found in each period ... Другие результаты с сайта www.quora.com

A period on the periodic table is a row of chemical elements. All elements in a row have the same number of electron shells. Period 1 · Period 2 · Period 3 · Period 4

20 нояб. 2020 г. · The periods in the periodic table tell us about the number of electron shells or energy levels that the elements have.

In the modern periodic table, elements are arranged in order of atomic number in periods and groups. Electronic arrangements model how electrons are arranged.