3 shells; 2 electrons in the first shell, 8 in the second shell and 8 in the third shell.
there are 2 completely full shells in argon. Argon= 18 electrons. 2 first shell 8 second shell (full) and 8 third shell (full)
Polonium has 6 electron shells.
A sulfur atom has 3 electron shells.
Chromium has two electrons in the outer most shell.
Thallium has 6 electron shells.
FULL
full
Their outermost electron shells are full.
there are 2 completely full shells in argon. Argon= 18 electrons. 2 first shell 8 second shell (full) and 8 third shell (full)
Argon has 18 electrons in its electron cloud.
The noble gas with three electron shells is argon (Ar). It is located in group 18 of the periodic table and has a complete outer electron shell, making it chemically inert. Argon has an atomic number of 18 and is commonly used in various applications, including lighting and welding.
Magnesium has three electron shells. The electron configuration is 2,8,2
Bromine has 4 electron shells.
Polonium has 6 electron shells.
Sodium, i believe has 3 shells.
A sulfur atom has 3 electron shells.
This question is unclear. If you mean 3 full electron shells and nothing else, then it would be argon. But every element after argon has 3 full electron shells also, but they also have other shells with electrons. If you mean a full 3rd energy shell such as in having 3d10 electrons, then it would be Zn but Zn also has 4s2 electrons. So, the question is a vague one.