If the pattern of ions shown here for the galena is expanded in every direction, how many sulfide ions would surround each lead ion? ___ How many lead ions would surround each sulfide ion? ___ PLEASE HELP ASAP!!

20 drops hope this

it's c (engineer's do their work with mechanical stuff not on any living being)

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.