Eight.
Argon (Ar) has 18 electrons. It is a noble gas with a full outer electron shell, which makes it stable and unreactive.
Krypton has eight outer shell electrons. It is a noble gas with the electron configuration of [Ar] 3d¹⁰ 4s² 4p⁶, indicating that its outermost shell (the fourth shell) is fully occupied with eight electrons. This full valence shell contributes to krypton's chemical inertness.
Zinc is [Ar] 3d104s2 so there are 2 valence electrons.
Sodium (Na+) with 1 electron in its outer shell, chlorine (Cl-) with 1 extra electron, potassium (K+) with 1 electron removed, calcium (Ca2+) with 2 electrons removed, and argon (Ar) with a full outer shell of electrons.
Both calcium ion (Ca2+) and argon atom (Ar) have a full outer electron shell, making them stable and unreactive. This stable electron configuration is achieved by either gaining or losing electrons to attain a full valence shell.
Argon has eight valence (outer) shell electrons. It is a Noble Gas so its valence shell is full (Octet Rule).
Ti has the configurate [Ar]4s2,3d2 so it has 2 electrons in its outer shell
The calcium atom has 2 outer shell electrons. It's configuration is: [Ar] 4s2 it also has 2 inner shell electrons
Germanium is a group 14 element. It's electron structure is [Ar] 3d10 4s2 4p2. Therefore, it has 2 electron's in its outer shell.
Argon (Ar) has 18 electrons. It is a noble gas with a full outer electron shell, which makes it stable and unreactive.
Zinc is [Ar] 3d104s2 so there are 2 valence electrons.
He :The number of electrons in an atom's outer electron shell determines how many dots there are. Helium has 2 electrons in its outer electron shell, so 2 dots.
The number of valence electrons is dependent on which group of the periodic table the element is in.Since Argon is in group 8, it has a total of 8valence electrons.
Sodium (Na+) with 1 electron in its outer shell, chlorine (Cl-) with 1 extra electron, potassium (K+) with 1 electron removed, calcium (Ca2+) with 2 electrons removed, and argon (Ar) with a full outer shell of electrons.
Both calcium ion (Ca2+) and argon atom (Ar) have a full outer electron shell, making them stable and unreactive. This stable electron configuration is achieved by either gaining or losing electrons to attain a full valence shell.
Five electrons. Gallium has an electronic configuration of [Ar] 4s2 3d10 4p1 The outer shell can be considered full when it is the same as the noble gas in the same period, Krypton, which has the configuration [Ar] 3d10 4s2 4p6
Iron has an electronic configuration of [Ar] 3d6 4s2. Both outer shells (3 and 4 are incomplete - this is typical for the transition metals, and explained by the aufbau principle. In theory you would need an additional 4 electrons to fill the 3d shell (making it d10), and additionally 6 p electrons, 10 d electrons and 14 f electrons to fill the 4th What happens in practise is the iron has common oxidation states of 2 (losing the 4s2 electrons) and 3 (additionally losing one d electron).