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List of Undiscovered Elements

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This is the list of the periodic table elements from 123, 125, 128 to 136 and 138 to 499 grouped by tens (single space) and regrouped by hundreds (double space). Please be reminded that the following elements are not yet discovered so please in regards to standards, DO NOT name any elements which are not officially named.


List Edit

Period 8 Edit

123, 125, 128, 129, 130

131, 132, 133, 134, 135, 136, 138, 139, 140. Donaldson's

141, 142, 143, 144, 145, 146, 147, 148, 149, 150

151, 152, 153, 154, 155, 156, 157, 158, 159, 160

161, 162, 163, 164, 165, 166, 167, 168,

Period 9 Edit

169, 170

171, 172, 173, 174, 175, 176, 177, 178, 179, 180

181, 182, 183, 184, 185, 186, 187, 188, 189, 190

191, 192, 193, 194, 195, 196, 197, 198, 199, 200

201, 202, 203, 204, 205, 206, 207, 208, 209, 210

211, 212, 213, 214, 215, 216, 217, 218

Period 10 Edit

219, 220

221, 222, 223, 224, 225, 226, 227, 228, 229, 230

231, 232, 233, 234, 235, 236, 237, 238, 239, 240

241, 242, 243, 244, 245, 246, 247, 248, 249, 250

251, 252, 253, 254, 255, 256, 257, 258, 259, 260

261, 262, 263, 264, 265, 266, 237, 268, 269, 270

271, 272, 273, 274, 275, 276, 277, 278, 279, 280

281, 282, 283, 284, 285, 286, 287, 288, 289, 290

Period 11 Edit

291, 292, 293, 294, 295, 296, 297, 298, 299, 300

301, 302, 303, 304, 305, 306, 307, 308, 309, 310

311, 312, 313, 314, 315, 316, 317, 318, 319, 320

321, 322, 323, 324, 325, 326, 327, 328, 329, 330

331, 332, 333, 334, 335, 336, 337, 338, 339, 340

341, 342, 343, 344, 345, 346, 347, 348, 349, 350

351, 352, 353, 354, 355, 356, 357, 358, 359, 360

361, 362

Period 12 Edit

363, 364, 365, 366, 367, 368, 369, 370

371, 372, 373, 374, 375, 376, 377, 378, 379, 380

381, 382, 383, 384, 385, 386, 387, 388, 389, 390

391, 392, 393, 394, 395, 396, 397, 398, 399, 400

401, 402, 403, 404, 405, 406, 407, 408, 409, 410

411, 412, 413, 414, 415, 416, 417, 418, 419, 420

421, 422, 423, 424, 425, 426, 427, 428, 429, 430

431, 432, 433, 434, 435, 436, 437, 438, 439, 440

441, 442, 443, 444, 445, 446, 447, 448, 449, 450

451, 452, 453, 454, 455, 456, 457, 458, 459, 460

Period 13 Edit

461, 462, 463, 464, 465, 466, 467, 468, 469, 470

471, 472, 473, 474, 475, 476, 477, 478, 479, 480

481, 482, 483, 484, 485, 486, 487, 488, 489, 490

491, 492, 493, 494, 495, 496, 497, 498, 499

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