Based on the data gathered in millikan's oil-drop experiments, the concept of atomic structure was modified. which of the following aspects of the structure of the atom was validated by these experiments? 1.mass of the atom2.mass of an electron3.charge on an electron4.charge on a proton5. mass of a proton

3. Charge on an electron

Explanation:

Millikan and Fletcher could measure the charge on the oil droplets.

When they repeated the oil drop experiment many times, they found that the charges were integral multiples of 1.59 × 10⁻¹⁹ C.

They proposed that this was the charge on an electron.

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.