The outer shell of an atom is most stable or non reactive with 8 electrons. 1 or 2 valence electrons would be reactive. It also would depend if it's bonded with another element.
The alkali earth elements have TWO valence electrons.
No, sulfur has six valence electrons, while magnesium has two valence electrons.
Beryllium has two valence electrons.
O - Oxygen has 6 valence electrons.
only some elements are non-reactive, while others are reactive, because the chemicals have reactins when they mix with ccertain other elements and compounds. consult a chemistry teacher to see which are reactive, and which are not.
There are two non-valence electrons in a neturol boron atom. The electronic configuration of neutral boron is 1s2, 2s2 2p1. The three electrons in the 2d shell are the valence electrons; the non--valence electrons are in the 1s orbital.
The alkali earth elements have TWO valence electrons.
All noble gasses have 8 valence electrons, it is what makes them "stable" and therefore are non reactive.
Two valence electrons.
Helium has two valence electrons. It is the only noble gas not to have eight valence electrons. Helium has the electronic configuration 1s2.The Noble gases have eight valence electrons in their outer shell.
Beryllium has two valence electrons.
Zinc has two valence electrons.
No, sulfur has six valence electrons, while magnesium has two valence electrons.
Calcium is a metal that has two valence electrons.
In a reaction u need two valence electrons to gain or share two valence electrons.
Beryllium has two valence electrons.
A group of elements with two valence electrons are called alkaline earth metals. This group includes elements like magnesium and calcium. These elements are highly reactive due to their tendency to lose their two valence electrons.