WebScience. Chemistry. Chemistry questions and answers. a) Calcium's atomic number is 20. How many electron shells would you draw and how many electrons will be held in each shell ? . Is Calcium stable ? b) Chlorine's atomic number is 17. Web2 electrons occupy the first shell; 8 electrons occupy the second shell; 1 electron occupies the third shell; This electron arrangement can be written as 2.8.1 (each dot separates one …
Shells and Subshells - A-Level Chemistry - Revision …
WebMar 24, 2024 · By Staff Writer Last Updated March 24, 2024 The maximum number of electrons that an energy level can hold is determined from the formula 2n^2 equals the total number, where n is the energy level. Thus, the first energy level holds 2 * 1^2 = 2 electrons, while the second holds 2 * 2^2 = 8 electrons. WebAug 18, 2024 · The first shell can fit a maximum of two and the second shell can fit a maximum of eight electrons. Valence electrons are in the highest-numbered (outer) shell; … christian cruises
How many electrons can each shell hold? - KnowledgeBurrow
WebSep 6, 2024 · The maximum number of electrons that can fill each shell is: two in the first shell, eight in the second shell, eight in the third shell. Calcium, the 20 th element, has two further electrons that go in the fourth shell. In the shorthand notation for electron configuration, the number of electrons in each shell can be written rather than drawn ... WebThe second shell can hold 8 electrons. The third shell can hold 32 electrons. Within the shells, electrons are further grouped into subshells of four different types, identified as s, p, d, and f in order of increasing energy. The first shell has only an s subshell; the second shell has an s and ... Rule 2: Each orbital can hold only two ... WebMay 25, 2024 · Each shell can contain only a fixed number of electrons: The first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to 18 (2 + 6 + 10) and so on. The general formula is that the nth shell can in principle hold up to 2 (n2) electrons. How many electron shells are in each period? georgetown guyana safe