Valency ntawm francium yog dab tsi?
Valency ntawm francium yog dab tsi?

Video: Valency ntawm francium yog dab tsi?

Video: Valency ntawm francium yog dab tsi?
Video: H Li Na K Rb Cs Fr by LikeGG | Geometry Dash 2.11 2024, Kaum ib hlis
Anonim

Nyob rau hauv lub periodic table ntawm cov ntsiab lus, francium islocated nyob rau hauv qab sab laug ces kaum ntawm lub rooj. Nws yog nyob rau hauv thawj kab, los yog pab pawg, thiab qhov ntawd sawv cev muaj pes tsawg valence electrons nws muaj. Valence electrons yog cov hluav taws xob nyob rau sab nraud feem ntau lub zog ntawm lub atom. Rau francium , nws tsuas muaj ib qho valenceelectron xwb.

Ib yam li ntawd, koj tuaj yeem nug, dab tsi yog qhov valence ntawm selenium?

Selenium tshwj xeeb muaj ib qho electronconfiguration ntawm 2-8-18-6. Lub rau lub electrons nyob rau hauv lub outermost shellallow selenium kom muaj ntau yam valence tus lej. Selenium Cov tebchaw tau pom tias muaj valences ntawm -2, 4, thiab 6. Hais txog tus lej rau, selenium pom tias muaj rau qhov tshwm sim ntawm cov isotopes.

Tsis tas li ntawd, vim li cas francium tsawg heev? Qhov no yog vim qhov kev ncua deb ntawm nws cov electrons los ntawm lub nucleus thiab nws tus lej atomic. Dab tsi ntxiv, francium yog therarest lub caij uas tshwm sim hauv qhov tab sis ib qho. Feem ntau tsis tshua muaj Qhov tshwm sim ib qho yog astatin. Cov khoom no yog qhov tsis tshua muaj hluav taws xob thiab tawg mus rau hauv radon, radium, andastatine.

Ib sab saum toj no, tus nqi francium ntau npaum li cas?

Tsuas yog ob peb atoms ntawm francium tau tsim ua lag luam, yog li yog tias koj xav tsim 100 grams ntawm francium , koj tuaj yeem cia siab tias yuav them ob peb billion US dollars rau nws. Lutetium yog cov khoom kim tshaj plaws uas koj tuaj yeem xaj thiab yuav khoom. Cov nqe rau 100 grams oflutetium yog nyob ib ncig ntawm $10,000.

Puas yog francium yog nonmetal?

Francium . Francium yog ib tug tshuaj elementwith lub cim Fr thiab atomic tooj 87. Cov isotopes ntawm francium Kev lwj sai sai rau hauv astatine, radium, thiab radon. Theelectronic qauv ntawm a francium atom yog [Rn]7s1, thiab yog li lub caij yog classed li alkalimetal.

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