Is argon a stable element?

Is argon a stable element?

Argon is a chemical element with the symbol Ar and atomic number 18. It is in group 18 of the periodic table and is a noble gas. The complete octet (eight electrons) in the outer atomic shell makes argon stable and resistant to bonding with other elements.

How many types of orbitals are there in the second shell?

four orbitals

How many electrons are allowed in the L shell?

eight electrons

How many electrons can go in the second shell?

Why does the first shell only have 2 electrons?

This first shell has only one subshell (labeled 1s) and can hold a maximum of 2 electrons. This is why there are two elements in the first row of the periodic table (H & He). Because the first shell can only hold a maximum of 2 electrons, the third electron must go into the second shell.

Why can’t atoms only have 8 valence electrons?

Since S cannot reach into its d-orbitals, it cannot have more than 8 electrons in its valence (see other discussions on this page for definitions of valence etc, but by the most basic definition, yes, only 8).

What are the electrons in the outer shell called?

The number of electrons in the outermost shell of a particular atom determines its reactivity, or tendency to form chemical bonds with other atoms. This outermost shell is known as the valence shell, and the electrons found in it are called valence electrons.

Which elements have a complete outer shell?

Group 18 elements (helium, neon, and argon are shown) have a full outer, or valence, shell. A full valence shell is the most stable electron configuration.

How many electrons are in each shell of the Bohr diagram?

Orbitals in the Bohr model Under standard conditions, atoms fill the inner shells (closer to the nucleus) first, often resulting in a variable number of electrons in the outermost shell. The innermost shell has a maximum of two electrons, but the next two electron shells can each have a maximum of eight electrons.