Methods and dispensers for dispensing atomic objects are provided. An example method for dispensing atomic objects includes sealing a reaction component at least partially coated with a composition comprising the atomic objects inside an oven; and, with the oven disposed within a pressure-controlled chamber, heating the composition to an atomizing reaction temperature to cause an atomizing chemical reaction to occur. The reaction component comprises a material that is a participant in the reaction. A result of the reaction is elemental atomic objects deposited on a depositing surface within the oven. The atomizing reaction temperature is greater than a dispensing threshold temperature. The method further comprises allowing the oven to cool below the dispensing threshold temperature; and heating the oven to a dispensing temperature to cause the elemental atomic objects to be dispensed from the oven through a dispensing aperture. The dispensing temperature does not exceed the dispensing threshold temperature.