WebI don't understand what valence electrons and core electrons are. Ex: Se = 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4 What makes 4s2 and 4p4 valence electrons and the rest core. How can atoms with fewer than 8 valence electrons fill their outermost energy level? (If you can, can you please help me use either sulfur or magnesium to explain the process ... WebJan 15, 2024 · Atoms which have a complete shell of valence electrons tend to be chemically inert. Atoms with one or two valence electrons are highly reactive. This phenomenon can be explained by Hund's rule, which states that orbitals that are empty, half-full, or full are more stable than those that are not.
Why are some of the periodic table elements reactive? - UC Santa …
WebFeb 16, 2024 · Reactivity is an elements ability to gain an electron. So the better it is at "stealing" electrons, the more reactive it will be. The thing that makes fluorine so reactive is its electronegativity. Electronegativity is the tendency of an … WebJul 4, 2024 · Acyl chlorides are more reactive than carboxylic acids or carboxylic esters because they have a good leaving group attached to the carbonyl carbon. ... The reason why resonance is decreasing the reactivity of the carboxylic acid is because moving the electrons causes the carbonyl carbon to become less partially positive (which makes the ... harris county rental assistance application
Reactions with Water, Oxygen & Dilute Acids - Study.com
WebThe periodic table can also be used to predict the reactivity of elements. For example, alkali metals (group 1) have a single valence electron and are highly reactive, while noble gases (group 18) have a full valence shell and are generally unreactive. Halogens (group 17) have seven valence electrons and are highly reactive with metals. WebJan 1, 2024 · The most reactive elements tend to be short one or two electron or have one or two extra. For instance, fluorine (9) and chlorine (17) are short one electron from being … WebThe possible nucleophilic reactions for each carboxylic acid derivative depends on its reactivity with respect to the other acid derivatives (Fig. 1). Reactive acid derivatives can be converted to less reactive (more stable) acid derivatives, but not the other way round. For example, an ester can be converted to an amide, but not to an acid ... harris county rental assistance 2021