WebThe helium atom has two electrons bound to a nucleus with charge Z = 2. The successive removal of the two electrons can be diagrammed as. (8.1) He → I 1 He + + e − → I 2 He … WebHere we have given HOTS Questions for Class 9 Science Chapter 4 Structure of the Atom Question 1. Both helium (He) and beryllium (Be) have two valence electrons. Whereas …
Electronic Configuration of Elements - GeeksforGeeks
Web22 jun. 2024 · The electronic configuration of the two elements are as follows : X(Z = 16): K (2), L(8), M(6) ; Y(Z = 17): K(2), L(8), M(7) The element X needs two electrons in the … WebDuplet rule states that an element is stable if its atom has 2 electrons in its valence shell and to attain this state, elements lose, gain or share electrons and form chemical bonds. This rule is also called the duet rule. The only elements known to follow the this rule are Hydrogen, Helium and Lithium. how to change string to list java
Electronic configuration of helium gcse? [Expert Review]
Web17 dec. 2024 · The position of both, an electron and a helium atom is known within 1.0 nm. asked Dec 17, 2024 in Structure of Atom by pinky (74.5k points) structure of atom; neet; 0 votes. ... Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) ... WebWith one valence electron, it belongs to group 1 Number of protons in P atom = 15 Number of neutrons in P atom = 31−15 = 16 Number of electrons in P atom = 15 And electronic … WebThe octet rule is a chemical rule of thumb that reflects the theory that main-group elements tend to bond in such a way that each atom has eight electrons in its valence shell, giving it the same electronic configuration as a noble gas.The rule is especially applicable to carbon, nitrogen, oxygen, and the halogens; although more generally the rule is … how to change string to float