Video: Vim li cas argon muaj lub vojvoog loj dua atomic?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov loj ntawm argon yog ntau dua tshaj li chlorine vim yog interelectronic repulsions pib tshwm sim thaum ib atom mus cuag nws octet. Argon atom yog loj dua tshaj li chlorine atom vim, chlorine atom muaj 3 lub plhaub sab nraud uas tig mus ncig nws thiab nws muaj xya valence electrons thiab nws valency yog 1.
Tsis tas li ntawd, vim li cas lub atomic radius ntawm argon loj dua tag nrho cov tswv cuab ntawm peb lub sijhawm?
Qhov no yog vim tus naj npawb ntawm protons nce (sodium muaj 11, argon muaj 18) yog li tus nqi nuclear nce. Yog li ntawd, qhov attraction ntawm lub zoo nucleus thiab tsis zoo electrons nyob rau hauv lub plhaub sab nrauv nce, yog li lub atomic radius (qhov kev ncua deb ntawm lub nucleus thiab lub plhaub sab nraud) txo qis.
Tom qab ntawd, lo lus nug yog, vim li cas argon tsis ua raws li atomic radius sib? Nco ntsoov tias argon tsis suav nrog. Electronegativity yog hais txog qhov nyiam ntawm ib qho atom kom nyiam ib khub ntawm electrons. Txij li thaum argon tsis tsim covalent bonds, koj pom tseeb ua tau ' tsis muab nws electronegativity. Cov sib yog piav raws nraim tib yam li cov sib hauv atomic radii.
Ib sab ntawm no, lub caij twg hauv lub sijhawm peb muaj qhov loj tshaj plaws atomic radius?
(B) Kev Nyuaj Siab hauv Atomic Radius ntawm Elements hauv Lub Sijhawm 3
| Element | Na | Mg |
|---|---|---|
| Yooj Yim Electron Configuration | 2, 8, 1 | 2, 8, 2 |
| Zog Qib tau sau (Valence Plhaub) | thib peb (M) | thib peb (M) |
| Nuclear Charge (them rau tag nrho cov protons) | 11+ | 12+ |
| Atomic Radius (pm) | 154 | 130 |
Dab tsi yog qhov atomic radius ntawm argon?
188pm ua
Pom zoo:
Yuav ua li cas koj pom lub kaum sab xis nruab nrab muab qhov chaw thiab lub vojvoog ntawm ib lub sector?
Kev txiav txim siab Central Angle Los ntawm Sector Area (πr2) × (central angle in degrees ÷ 360 degrees) = sector area. Yog hais tias lub hauv paus lub kaum sab xis ntsuas nyob rau hauv radians, lub mis hloov mus ua: sector cheeb tsam = r2 × (central kaum hauv radians ÷ 2). (θ ÷ 360 degree) × πr2. (52.3 ÷ 100π) × 360. (52.3 ÷ 314) × 360
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