nonmetallic metalloid Comparison Table

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Next metalloid element: metallic metalloid Up: metalloid element

nonmetallic metalloid comparison table

Subject has pronunciation has thermal neutron capture cross section has rigidity modulu has synonym has isotope mass range has heat of vaporization has discoverer has thermal conductivity has discovery date has occurrence has name origin has linear expansion coefficient has heat of fusion has specimen has main mining area has daily dietary intake has lethal intake has ocean residence time has mineral has melting point has neutron scattering length has image has ocean concentration has covalent radii has term symbol has crystal cell dimension has poisson's ratio has mass of element in person has reserve has ocean oxidation state has young's modulu is a kind of react has heat capacity has van der Waals radii has molar volume has definition has boiling point has hazard has biological role has ionic radii has electrical resistivity has relative atomic mass has chief source has electron affinity has registry number has density has atomic radii has atomic number has synthesis mechanism has mass magnetic susceptibility has hardness has discovery location has number of isotope has toxic intake has abundance has atomic emission line reacts with has longest lived isotope has symbol has use has world production has electron configuration has number of proton has mass absorption coefficient has level in human has electronegativity has appearance has group

arsenic ahrs-nik 4.30 barns pnictogen 67 to 87 31.9 kJ mol^-1 Albertus Magnus 50.0 W m^-1 K^-1 at 300 K for α form 1250 ocean arsenikon = yellow orpiment from Greek 4.6 × 10^-6 K^-1 27.7 kJ mol^-1 available as powder. Danger ! not much mined as such because more than required is produced as a by-product of refining certain sulfide ores 0.04 to 1.4 mg 50 to 300 mg 90000 years arsenopyrite, conichalcite, enargite, lollingite, olivenite, orpiment and realgar 1090 K for α form under pressure 0.658 × 10^-12 cm increasing with depth 121 pm ⁴S_3/2 in ground state c = 10.548 pm for β form 0.5 to 15 mg for a 70 kg average person depending on diet V recycled oceanic element 20.786 J K^-1 mol^-1 for gas at constant pressure of 0.1 MPa at 298.15 K 200 pm 15.9 cm³ for β form a metalloid element with two main forms, grey α arsenic and β arsenic 889 K sublimes salts and arsine gases are very poisonous. Stimulates metabolism in small doses, but it is carcinogenic and possibly teratogenic essential to some species including humans 69 pm for As³⁺ 26 × 10^-8 Ω m at 273 K 74.92159 in units of ¹²C = 12.000 arsenopyrite, realgar and orpiment 78 kJ mol^-1 from As to As^- 7440-38-2 for Chemical Abstracts System database 4700 kg m^-3 for solid at 293 K (β form) 125 pm 33 -3.97 × 10^-9 kg^-1 m³ for β form brittle for α form Germany 22 5 to 50 mg 1.75 × 10^-3 p.p.m. in deep Pacific seawater 454.348 nm for As II hot acids and molten NaOH, tarnishes burns in oxygen As alloys, semiconductors, pesticides, wood preservatives and glass 47000 tonnes per year for As₂O₃ [Ar]3d¹⁰4s²4p³ in ground state 33 69.7 cm² g^-1 for MoK_α X-ray diffraction 0.009 to 0.65 p.p.m. in muscle 2.18 Pauling metallic for α form 15

boron bohr-on 767 barns atom 8 to 13 538.9 kJ mol^-1 L.J. Lussac and L.J. Thenard 27.0 W m^-1 K^-1 at 300 K 1808 ocean buraq from Arabic 5 × 10^-6 K^-1 22.2 kJ mol^-1 crystals, pieces or powder. Safe. ulexite in USA, Tibet, Chile; colemanite in USA, Turkey 1 - 3 mg 10 - 20 g as boric acid 1 × 10⁷ years borax, colemanite, datolite, kernite, ulexite 2573 K 0.535 × 10^-12 cm depth indenpendent 88 pm ²P_1/2 in ground state a = 506.7, α = 58deg4' pm for α-B 18 mg for a 70 kg average person 270 × 10⁶ tonnes as B₂O₃ III accumulating oceanic element 20.799 J K^-1 mol^-1 for gas at constant pressure 0.1 MPa at 298.15 K 208 pm 4.62 cm³ Non-metal with several forms - the most common form is a dark amorphous powder, unreactive to water, acids and alkalis. Rare and fragile element. Nuclear reactions in stars destroy it. Most boron is created in space, by cosmic rays that smash into heavier atoms and split them. 3931 K boric acid and borates are poisonous, although once used in medicines essential to plants; toxic in excess 23 pm for B³⁺ 18000 Ω m at 293 K 10.811 in units of ¹²C = 12.000 kernite, borax, ulexite, colemanite 26.7 kJ mol^-1 from B to B^- 7440-42-8 for Chemical Abstracts System database 2340 kg m^-3 for β-rhombohedral solid at 293 K 83 pm 5 -7.8 × 10^-9 kg^-1 m³ for solid Paris, France and London, England 6 including nuclear isomers 5 g as boric acid 4.41 p.p.m. in seawater 1166.247 nm for B I metals to form borides boron 11 B borosilicate glass, detergents and fire-retardants 1 × 10^{6^{tonnes year^-1 as B₂O₃}} [He]2s²2p¹ in ground state 5 0.392 cm² g^-1 for MoK_alpha X-ray diffraction 0.33 - 1 p.p.m. in muscle 2.04 Pauling 13

silicon sil-i-kon 0.171 barns 39.7 GPa atom 24 to 34 383.3 kJ mol^-1 J.J. Berzelius 148 W m^-1 K^-1 at 300 K 1824 in silicate materials such as igneous rocks silicis = flint from Latin 4.2 × 10^-6 K^-1 39.6 kJ mol^-1 available as powder, pieces or lumps. Safe. talc in Austria, Italy, India, South Africa, Australia, mica in Canada, USA, India, Brazil 18 - 1200 mg non-toxic 30000 years silicates 1683 K 0.41543 × 10^-12 cm increasing with depth 117 pm ³P₀ in ground state a = pm 0.42 GPa 1 g for a 70 kg average person unlimited × 10 tonnes IV 113 GPa recycled oceanic element HF acid or hot alkali solutions by dissolving 22.251 J K^-1 mol^-1 for gas at constant pressure 0.1 MPa at 298.15 K 200 pm 12.06 cm³ ultrapure crystals of silicon have a blue-grey metallic sheen 2628 K some silicate fibres are carcinogenic such as asbestos essential to some species and possibly to humans 271 pm for Si^4- 0.001 Ω m at 273 K 28.0555 in units of ¹²C = 12.000 quartz, talc, mica 133.3 kJ mol^-1 from Si to Si^- 7440-21-3 for Chemical Abstracts System database 2525 kg m^-3 for liquid at 1683 K melting point 117 pm 14 reduction of sand (SiO₂) with carbon produces black amorphous silicon -1.8 × 10^-9 kg^-1 m³ for solid Stockholm, Sweden 11 including nuclear isomers non-toxic 4.09 p.p.m. in deep Pacific seawater 637.136 nm for Si II silicon 28 Si semiconductors, alloys and polymers 3.4 × 10⁶ tonnes year^-1 for metallurgical grade [Ne]3s²3p² in ground state 14 6.44 cm² g^-1 for MoK_α X-ray diffraction 100 - 200 p.p.m. in muscle 1.90 Pauling 14

tellurium chalcogen group VI element 16

Next metalloid element: metallic metalloid Up: metalloid element

Subject	has pronunciation	has thermal neutron capture cross section	has rigidity modulu	has synonym	has isotope mass range	has heat of vaporization	has discoverer	has thermal conductivity	has discovery date	has occurrence	has name origin	has linear expansion coefficient	has heat of fusion	has specimen	has main mining area	has daily dietary intake	has lethal intake	has ocean residence time	has mineral	has melting point	has neutron scattering length	has image	has ocean concentration	has covalent radii	has term symbol	has crystal cell dimension	has poisson's ratio	has mass of element in person	has reserve	has ocean oxidation state	has young's modulu	is a kind of	react	has heat capacity	has van der Waals radii	has molar volume	has definition	has boiling point	has hazard	has biological role	has ionic radii	has electrical resistivity	has relative atomic mass	has chief source	has electron affinity	has registry number	has density	has atomic radii	has atomic number	has synthesis mechanism	has mass magnetic susceptibility	has hardness	has discovery location	has number of isotope	has toxic intake	has abundance	has atomic emission line	reacts with	has longest lived isotope	has symbol	has use	has world production	has electron configuration	has number of proton	has mass absorption coefficient	has level in human	has electronegativity	has appearance	has group
arsenic	ahrs-nik	4.30 barns		pnictogen	67 to 87	31.9 kJ mol^-1	Albertus Magnus	50.0 W m^-1 K^-1 at 300 K for α form	1250	ocean	arsenikon = yellow orpiment from Greek	4.6 × 10^-6 K^-1	27.7 kJ mol^-1	available as powder. Danger !	not much mined as such because more than required is produced as a by-product of refining certain sulfide ores	0.04 to 1.4 mg	50 to 300 mg	90000 years	arsenopyrite, conichalcite, enargite, lollingite, olivenite, orpiment and realgar	1090 K for α form under pressure	0.658 × 10^-12 cm		increasing with depth	121 pm	⁴S_3/2 in ground state	c = 10.548 pm for β form		0.5 to 15 mg for a 70 kg average person depending on diet		V		recycled oceanic element		20.786 J K^-1 mol^-1 for gas at constant pressure of 0.1 MPa at 298.15 K	200 pm	15.9 cm³ for β form	a metalloid element with two main forms, grey α arsenic and β arsenic	889 K sublimes	salts and arsine gases are very poisonous. Stimulates metabolism in small doses, but it is carcinogenic and possibly teratogenic	essential to some species including humans	69 pm for As³⁺	26 × 10^-8 Ω m at 273 K	74.92159 in units of ¹²C = 12.000	arsenopyrite, realgar and orpiment	78 kJ mol^-1 from As to As^-	7440-38-2 for Chemical Abstracts System database	4700 kg m^-3 for solid at 293 K (β form)	125 pm	33		-3.97 × 10^-9 kg^-1 m³ for β form	brittle for α form	Germany	22	5 to 50 mg	1.75 × 10^-3 p.p.m. in deep Pacific seawater	454.348 nm for As II	hot acids and molten NaOH, tarnishes burns in oxygen		As	alloys, semiconductors, pesticides, wood preservatives and glass	47000 tonnes per year for As₂O₃	[Ar]3d¹⁰4s²4p³ in ground state	33	69.7 cm² g^-1 for MoK_α X-ray diffraction	0.009 to 0.65 p.p.m. in muscle	2.18 Pauling	metallic for α form	15
boron	bohr-on	767 barns		atom	8 to 13	538.9 kJ mol^-1	L.J. Lussac and L.J. Thenard	27.0 W m^-1 K^-1 at 300 K	1808	ocean	buraq from Arabic	5 × 10^-6 K^-1	22.2 kJ mol^-1	crystals, pieces or powder. Safe.	ulexite in USA, Tibet, Chile; colemanite in USA, Turkey	1 - 3 mg	10 - 20 g as boric acid	1 × 10⁷ years	borax, colemanite, datolite, kernite, ulexite	2573 K	0.535 × 10^-12 cm		depth indenpendent	88 pm	²P_1/2 in ground state	a = 506.7, α = 58deg4' pm for α-B		18 mg for a 70 kg average person	270 × 10⁶ tonnes as B₂O₃	III		accumulating oceanic element		20.799 J K^-1 mol^-1 for gas at constant pressure 0.1 MPa at 298.15 K	208 pm	4.62 cm³	Non-metal with several forms - the most common form is a dark amorphous powder, unreactive to water, acids and alkalis. Rare and fragile element. Nuclear reactions in stars destroy it. Most boron is created in space, by cosmic rays that smash into heavier atoms and split them.	3931 K	boric acid and borates are poisonous, although once used in medicines	essential to plants; toxic in excess	23 pm for B³⁺	18000 Ω m at 293 K	10.811 in units of ¹²C = 12.000	kernite, borax, ulexite, colemanite	26.7 kJ mol^-1 from B to B^-	7440-42-8 for Chemical Abstracts System database	2340 kg m^-3 for β-rhombohedral solid at 293 K	83 pm	5		-7.8 × 10^-9 kg^-1 m³ for solid		Paris, France and London, England	6 including nuclear isomers	5 g as boric acid	4.41 p.p.m. in seawater	1166.247 nm for B I	metals to form borides	boron 11	B	borosilicate glass, detergents and fire-retardants	1 × 10^{6^{tonnes year^-1 as B₂O₃}}	[He]2s²2p¹ in ground state	5	0.392 cm² g^-1 for MoK_alpha X-ray diffraction	0.33 - 1 p.p.m. in muscle	2.04 Pauling		13
silicon	sil-i-kon	0.171 barns	39.7 GPa	atom	24 to 34	383.3 kJ mol^-1	J.J. Berzelius	148 W m^-1 K^-1 at 300 K	1824	in silicate materials such as igneous rocks	silicis = flint from Latin	4.2 × 10^-6 K^-1	39.6 kJ mol^-1	available as powder, pieces or lumps. Safe.	talc in Austria, Italy, India, South Africa, Australia, mica in Canada, USA, India, Brazil	18 - 1200 mg	non-toxic	30000 years	silicates	1683 K	0.41543 × 10^-12 cm		increasing with depth	117 pm	³P₀ in ground state	a = pm	0.42 GPa	1 g for a 70 kg average person	unlimited × 10 tonnes	IV	113 GPa	recycled oceanic element	HF acid or hot alkali solutions by dissolving	22.251 J K^-1 mol^-1 for gas at constant pressure 0.1 MPa at 298.15 K	200 pm	12.06 cm³	ultrapure crystals of silicon have a blue-grey metallic sheen	2628 K	some silicate fibres are carcinogenic such as asbestos	essential to some species and possibly to humans	271 pm for Si^4-	0.001 Ω m at 273 K	28.0555 in units of ¹²C = 12.000	quartz, talc, mica	133.3 kJ mol^-1 from Si to Si^-	7440-21-3 for Chemical Abstracts System database	2525 kg m^-3 for liquid at 1683 K melting point	117 pm	14	reduction of sand (SiO₂) with carbon produces black amorphous silicon	-1.8 × 10^-9 kg^-1 m³ for solid		Stockholm, Sweden	11 including nuclear isomers	non-toxic	4.09 p.p.m. in deep Pacific seawater	637.136 nm for Si II		silicon 28	Si	semiconductors, alloys and polymers	3.4 × 10⁶ tonnes year^-1 for metallurgical grade	[Ne]3s²3p² in ground state	14	6.44 cm² g^-1 for MoK_α X-ray diffraction	100 - 200 p.p.m. in muscle	1.90 Pauling		14
tellurium				chalcogen																												group VI element																																					16