Muaj pes tsawg valence electrons nyob hauv lithium?
Muaj pes tsawg valence electrons nyob hauv lithium?

Video: Muaj pes tsawg valence electrons nyob hauv lithium?

Video: Muaj pes tsawg valence electrons nyob hauv lithium?
Video: Yog muaj 5 yam no ua pes tsawg lub hom phiaj los yeej tiav 2024, Kaum ib hlis
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Hydrogen muaj 1 electron nyob rau hauv thawj lub plhaub (yog li ib valence electron ). Helium muaj 2 electrons --- ob qho tib si hauv thawj lub plhaub (yog li ob lub valence electrons). Lithium muaj 3 electrons --- 2 hauv thawj lub plhaub, thiab 1 hauv lub plhaub thib ob (yog li ib valence electron ).

Kuj tseem paub yog, lithium puas muaj valence electrons?

Lithium muaj atomic naj npawb ntawm 3. Yog li ib tug nruab nrab lithium atom muaj 3 protons thiab 3 electrons . Ob electrons hauv kab 1 thiab ib hluav taws xob hauv plhaub 2. Yog li Lithium muaj tsuas yog 1 valence electron hauv 2s orbital.

Ib yam li ntawd, pes tsawg neutrons nyob hauv lithium? 3

Ib yam li ib tug yuav nug, vim li cas 3rd plhaub 8 lossis 18?

Txhua plhaub muaj peev xwm tsuas muaj ib tug taag naj npawb ntawm electrons: Thawj plhaub tuaj yeem tuav tau txog li ob lub electrons, qhov thib ob plhaub tuaj yeem tuav tau yim (2 + 6) electrons, cov peb lub plhaub tuaj yeem tuav tau 18 (2 + 6 + 10) thiab lwm yam. Rau kev piav qhia vim li cas electrons muaj nyob hauv cov no plhaub saib electron configuration.

N muaj pes tsawg valence electrons?

5 valence electrons

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