Thallium

Thallium, ₈₁Tl
Thallium
Pípè	/ˈθæliəm/ (THAL-ee-əm)
Ìhànsójú	silvery white
Ìwúwo átọ̀mù Ar, std(Tl)	[204.382, 204.385] conventional: 204.38
Thallium ní orí tábìlì àyè
	fàdákàolómi ← thallium → òjé
Nọ́mbà átọ̀mù (Z)	81
Ẹgbẹ́	group 13 (boron group)
Àyè	àyè 6
Àdìpọ̀	Àdìpọ̀-p
Ẹ̀ka ẹ́límẹ́ntì	Post-transition metal
Ìtò ẹ̀lẹ́ktrọ́nù	[Xe] 4f14 5d10 6s2 6p1
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan	2, 8, 18, 32, 18, 3
Àwọn ohun ìní ara
Ìfarahàn at STP	solid
Ìgbà ìyọ́	577 K (304 °C, 579 °F)
Ígbà ìhó	1746 K (1473 °C, 2683 °F)
Kíki (near r.t.)	11.85 g/cm3
when liquid (at m.p.)	11.22 g/cm3
Heat of fusion	4.14 kJ/mol
Heat of	165 kJ/mol
Molar heat capacity	26.32 J/(mol·K)
Atomic properties
Oxidation states	−5, −2, −1, +1, +2, +3 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment
Electronegativity	Pauling scale: 1.62
Atomic radius	empirical: 170 pm
Covalent radius	170±8 pm
Van der Waals radius	196 pm
	Color lines in a spectral rangeSpectral lines of thallium
Other properties
Natural occurrence	primordial
Crystal structure	hexagonal
Speed of sound thin rod	818 m/s (at 20 °C)
Thermal expansion	29.9 µm/(m·K) (at 25 °C)
Thermal conductivity	46.1 W/(m·K)
Electrical resistivity	0.18 µ Ω·m (at 20 °C)
Magnetic ordering	diamagnetic
Young's modulus	8 GPa
Shear modulus	2.8 GPa
Bulk modulus	43 GPa
Poisson ratio	0.45
Mohs hardness	1.2
Brinell hardness	26.4 MPa
CAS Number	7440-28-0
Main isotopes of thallium
	Àdàkọ:Category-inline; wo; ọ̀rọ̀; àtúnṣe; \| references

Thallium ( /ˈθæliəm/ THAL-ee-əm) je apilese kemika pelu ami-idamo Tl ati nomba atomu 81.

Àyọkà yìí tàbí apá rẹ̀ únfẹ́ àtúnṣe sí.

Ẹ le fẹ̀ jù báyìí lọ tàbí kí ẹ ṣàtúnṣe rẹ̀ lọ́nà tí yíò mu kúnrẹ́rẹ́. Ẹ ran Wikipedia lọ́wọ́ láti fẹ̀ẹ́ jù báyìí lọ.

Itokasi àtúnṣe

↑ Dong, Z.-C.; Corbett, J. D. (1996). "Na₂₃K₉Tl_15.3: An Unusual Zintl Compound Containing Apparent Tl₅⁷⁻, Tl₄⁸⁻, Tl₃⁷⁻, and Tl⁵⁻ Anions". Inorganic Chemistry 35 (11): 3107–12. doi:10.1021/ic960014z.
↑ Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics 81st edition, CRC press.

[1] Dong, Z.-C.; Corbett, J. D. (1996). "Na₂₃K₉Tl_15.3: An Unusual Zintl Compound Containing Apparent Tl₅⁷⁻, Tl₄⁸⁻, Tl₃⁷⁻, and Tl⁵⁻ Anions". Inorganic Chemistry 35 (11): 3107–12. doi:10.1021/ic960014z.

[2] Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics 81st edition, CRC press.

[1]

[2]