Given the density of silver (10.5 g/cm³) and gold (19.3 g/cm³) in Group IB/11, estimate the density for the synthetic element roentgenium, which is below gold in the periodic table.

Periodic Table:

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2 3 4 10 6 3 7 11 1 IA Li 6.94 Na 22.99 19 37 5 Rb K 39.10 4 87 IIA Fr (223) Be 9.01 12 Mg 24.31 20 38 Ca Sc 40.08 44.96 21 Sr Y 85.47 87.62 88.91 55 56 La Cs Ba 132.91 137.33 138.91 88 3 4 IIIB IVB 39 57 89 Atomic number Symbol Atomic mass Ra Ac (226) (227) 22 Ti 47.88 40 Zr 91.22 72 5 VB 104 23 V 50.94 41 73 Hf Ta 178.49 180.95 Nb 92.91 105 -H 1.01 58 Ce 140.12 90 Th 232.04 6 VIB 24 Cr 52.00 42 Mo 95.95 74 106 Rf Db Sg (261) (262) (263) 59 Pr 140.91 91 7 VIIB Pa (231) 25 W Re 183.85 186.21 Mn 54.94 43 Tc (99) 75 107 60 Nd 144.24 8 VIII 92 26 Fe 55.85 44 Os 190.2 108 Ru Rh 101.07 102.91 76 61 Pm (147) 9 VIII Bh Hs Mt (262) (265) (266) 93 27 U NP 238.03 (237) Co 58.93 45 77 Ir 192.22 109 28 Ni 58.69 13 10 VIII 11 IB 13 IIIA 12 IIB 62 Sm 150.36 94 95 Pu Am (244) (243) B 10.81 14 15 IVA 7 N 14.01 15 P Al Si 26.98 28.09 30.97 17 16 VA VIA VIIA 6 C 12.01 14 16.00 16 83 Bi 208.98 115 S 32.07 29 30 34 31 32 33 Cu Zn Ga Ge As Se 63.55 65.39 69.72 72.63 74.92 78.97 84 Po (209) 116 66 67 68 63 64 65 69 Eu Gd Tb Dy Но Er Tm 151.97 157.25 158.93 162.50 164.93 167.26 168.93 96 97 98 99 100 Bk Cf Es Fm (247) (251) (252) (257) 101 Cm (247) 46 47 51 48 49 50 52 Ag Cd In Sn Sb Te 107.87 112.41 114.82 118.71 121.75 127.60 80 79 Pd 106.42 78 Pt 195.08 110 Au Hg 196.97 200.59 111 112 Cn 81 82 TI Pb 204.38 207.2 113 114 Nh Fl Ds Rg Mc Lv Ts (271) (272) (277) (286) (285) (289) (293) (294) 9 Md (258) F 19.00 17 Cl 35.45 35 Br 79.90 53 I 126.90 85 At (210) 117 70 Yb 173.04 102 18 VIIIA 2 He 4.00 10 Ne 20.18 18 Ar 39.95 36 Kr 83.80 54 Xe 131.29 86 Rn (222) 118 Og (294) 71 Lu 174.97 103 No Lr (259) (260)