What are the physical properties of group 15 and 16 elements?
don't spam plz
Answers
Answer:
Explanation:
Grp 15:
Property Nitrogen Phosphorus Arsenic Antimony Bismuth
Atomic symbol N P As Sb Bi
Atomic number 7 15 33 51 83
Atomic mass (amu) 14.01 30.97 74.92 121.76 209.98
Valence electron configuration [He]2s2 2p3 [Ne]3s2 3p3 [Ar]3d10 4s24p3 [Kr]4d10 5s25p3 [Xe]4f14 5d106s26p3
Melting point
Boiling point (°C)
– 210
-196
44.15
281
817
603(sublimes)
631
1587
271
1564
Density (g/cm3) at 25°C 1.15(g/L) 1.8 5.7 6.68 9.79
Atomic radius (pm) 56 98 114 133 143
First Ionization energy (kJ/mol) 1402 1012 947 834 703
Common Oxidation state(s) -3 to +5 +5, +3, -3 +5, +3 +5, +3 +3
Ionic radius (pm) 146(-3) 212(-3) 58(+3) 76(+3) 103(+3)
Electronegativity 3.0 2.2 2.2 2.1 1.9
Grp 16:
Property Oxygen Sulfur Selenium Tellurium Polonium
atomic symbol O S Se Te Po
atomic number 8 16 34 52 84
atomic mass (amu) 16.00 32.07 78.96 127.60 209
valence electron configuration* 2s22p4 3s23p4 4s24p4 5s25p4 6s26p4
melting point/boiling point (°C) −219/−183 115/445 221/685 450/988 254/962
density (g/cm3) at 25°C 1.31
(g/L)
2.07 4.81 6.24 9.20
atomic radius (pm) 48 88 103 123 135
first ionization energy (kJ/mol) 1314 1000 941 869 812
normal oxidation state(s) −2 +6, +4, −2 +6, +4, −2 +6, +4, −2 +2 (+4)
ionic radius (pm)† 140 (−2) 184 (−2), 29 (+6) 198 (−2), 42 (+6) 221 (−2), 56 (+6) 230 (−2), 97 (+4)
electron affinity (kJ/mol) −141 −200 −195 −190 −180
electronegativity 3.4 2.6 2.6 2.1 2.0
standard reduction potential (E°, V) (E0 → H2E in acidic solution) +1.23 +0.14 −0.40 −0.79 −1.00
product of reaction with O2 — SO2 SeO2 TeO2 PoO2
type of oxide — acidic acidic amphoteric basic
product of reaction with N2 NO, NO2 none none none none
product of reaction with X2 O2F2 SF6, S2Cl2, S2Br2 SeF6, SeX4 TeF6, TeX4 PoF4, PoCl2, PoBr2
product of reaction with H2 H2O H2S H2Se none none
*The configuration shown does not include filled d and f subshells.
†The values cited for the hexacations are for six-coordinate ions and are only estimated values.