 Unsuccessful attempts have been made to synthesise the period 8 elements up to unbiseptium, except unbitrium.Attempts to synthesise ununennium, the first period 8 element, are ongoing as of 2020.The synthesis of ununennium was first attempted in 1985 by bombarding a target of einsteinium-254 with calcium-48 ions at the superHILAC accelerator at Berkeley, California