Please Final Exam Question What is the location of the highest energy electron in a neutral, ground-state sodlum atom? energy level 1
energy level 2
energy level 3
energy level 4

third energy level

Explanation: In a sodium atom, the highest-energy principal energy level containing electrons is the third energy level, and that energy level contains one electron.

a compound is a molecule made of atoms from different elements.

a. by the combination of an unlimited number of elements

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.