The innermost electron shell of argon, which is occupied first, contains a total of 2 electrons.
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.
Plutonium has 7 electron shells. In its neutral state, plutonium has 94 electrons, which are distributed across these 7 shells based on the rules of electron configuration. The electron configuration of plutonium is [Rn] 5f6 7s2, indicating the filling of the 5f and 7s orbitals before moving on to the next shell.
The innermost electron shell of argon, which is occupied first, contains a total of 2 electrons.
Argon has 18 electrons in its electron cloud.
Magnesium has three electron shells. The electron configuration is 2,8,2
Polonium has 6 electron shells.
Bromine has 4 electron shells.
Sodium has three electron 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.