Tin has 46 core electrons.
Sn (tin) has 50 electrons 50 protons and 69 nuetrons
Sn has 50 total electrons and is in the Group 4a elements on the periodic table. The nearest Noble Gas that is before Sn is Kr, which has 36 electrons. Therefore, the number of inner electrons (the same as Kr's electrons) is 36, outer electrons is 4 and valence is 4 as well (because its a Group 4a
Germanium has 36 core electrons. Core electrons are the inner electrons that are not involved in chemical bonding.
Oxygen has 6 core electrons.
Germanium has 18 core electrons. Core electrons are the inner electrons of an atom that are not involved in chemical bonding.
An atom of Sn (Tin) has 4 valence electrons in the 5th shell, so it has 4 p electrons.
Oxygen as 2 core electrons and 6 valence electrons.
Carbon has 2 core electrons. Core electrons are the inner electrons of an atom that are not involved in chemical bonding.
Argon has 18 core electrons. This is because it has 18 electrons in total, and the core electrons are the innermost electrons that are not involved in chemical bonding.
Oxygen has 6 core electrons.
Helium has 2 core electrons. This is because it has 2 electrons in the innermost energy level (K shell), which are considered core electrons.
Silicon has a total of 10 core electrons and 4 valence electrons.