In each case, identify the element in question: (a) the mass number of an atom is 234 and the atom has 60.0% more neutrons than protons (b) an ion with a 2+ charge has 10.0% more protons than electrons (c) an ion with a mass number of 110 and a 2+ charge has 25.0% more neutrons than electrons

pie chart because it is in percents ( % )

answer seismograph;

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.