WebThe atomic radius of main-group elements generally increases down a group because _____. 1. A) effective nuclear charge increases down a group 2. B) effective nuclear charge decreases down a group 3. C) effective nuclear charge zigzags down a group 4. D) the principal quantum number of the valence orbitals increases 5. E) both effective nuclear … WebStudy with Quizlet and memorize flashcards containing terms like In nature, sulfur is most commonly found in ____. a. metal sulfides b. H2S c. pure elemental sulfur d. sulfur oxides e. sulfuric acid, The alkali metal that is used to treat manic-depressive illness is ____. a. Na b. K c. Li d. Rb e. Cs, Screening of the nuclear charge by core electrons in atoms is ____. …
Order of Reactivity of Halogens in Electrophilic Addition
WebMar 12, 2016 · Hence bond energy decreases in the order Cl2 > Br2 > F2 > I2. Due to small size, high electron density, greater inter electronic repulsion (lower F-F bond energy) F2 is highly reactive among halogens. WebWe have just seen that the bonding molecular orbital is lower energy and promotes the formation of a covalent bond, while the antibonding molecular orbital is higher energy with a node of zero electron density between the atoms … how fast do ostriches grow
Solved The gas-phase reaction of NO with F2 to form NOF and
WebJan 1, 2015 · Arguments are presented to show that the extreme reactivity of F 2 is best attributed to the occupancy of high energy * molecular orbitals that weaken the FF bond (ground-state destabilization)... WebJul 8, 2024 · F2 Forces – True or False. Contact forces are forces that act on objects through direct contact. Friction【摩擦力】 is an example of non-contact force. Friction is an example of contact force. Friction always opposes【抵抗】 the motion of an object. The friction between the tyres of a moving car and the road surface is greater when ... WebJan 30, 2024 · The first impression that is sometimes given that the fall in reactivity is because the incoming electron is held less strongly as you go down the group and so the negative ion is less likely to form. That explanation … how fast do orange trees grow