Cov reactivity ntawm alkali hlau nce los ntawm sab saum toj mus rau hauv qab ntawm pab pawg, lithium (Li) yog qhov tsawg tshaj plaws reactive alkali hlau thiab francium (Fr) yog qhov ntau tshaj. reactive.
Dab tsi yog cov hlau reactive tshaj plaws thiab yog vim li cas?
Qhov kev nyiam los ntawm cov nucleus zoo mus rau qhov tsis zoo electron tsawg dua. Qhov no ua rau nws yooj yim dua tshem tawm cov electron thiab ua rau lub atom ntau reactive. Kev sim hais lus, cesium (caesium) yog cov hlau reactive tshaj plaws.
Dab tsi yog cov hlau reactive alkali tshaj plaws nrog dej?
Sodium yog cov khoom alkali uas cuam tshuam nrog dej ntau tshaj.
Dab tsi yog qhov muaj zog alkali hlau?
Ntawm tag nrho cov alkalis lub zog alkali yog sodium hydroxide\[left({NaOH} right)]. Nws yog lub hauv paus toughest ntawm tag nrho cov hauv paus. Thaum yaj hauv dej sodium hydroxide tag nrho dissociates muab sodium ions thiab hydroxide ions. Nws tseem hu ua caustic soda.
Dab tsi yog qhov reactive alkali ntiaj teb hlau?
Alkaline ntiaj teb hlau ua rau pawg IIA ntawm lub sijhawm ntawm cov ntsiab lus. Lawv txhua tus pom ib lub xeev oxidation, +2, yog lub teeb, thiab muaj reactive, txawm tias tsawg dua li cov hlau alkali. Barium thiab radium yog cov reactive tshaj plaws thiab beryllium yog qhov tsawg tshaj plaws.
