Which atom has 20protons and 18 electrons?!

This is a mixture that has the same composition throughout.

The skeletal system performs a variety of functions that are crucial to maintaining life processes. what function is performed in the bone marrow, but not in the ossified bones of the skeleton? a oxygen transportation c mineral storage b. muscle attachment d red blood cell production

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration