It is group 16, also known as the chalcogens
== == When metals react with other elements, the atoms of the metals give up their valence electrons.
Because atoms with the same number of valence electrons react in similar ways with other elements.
Hydrogen has 1 valence electron, whereas helium has 2 valence electrons.
Such atoms belong to a group in the periodic table of elements.
having the same number of electrons in their outermost electron shell. This is known as the valence electrons, which dictate the elements' reactivity and chemical behavior. Elements in the same group tend to react in similar ways because they have the same number of valence electrons.
== == When metals react with other elements, the atoms of the metals give up their valence electrons.
== == When metals react with other elements, the atoms of the metals give up their valence electrons.
== == When metals react with other elements, the atoms of the metals give up their valence electrons.
== == When metals react with other elements, the atoms of the metals give up their valence electrons.
== == When metals react with other elements, the atoms of the metals give up their valence electrons.
The outer shell of the atoms in Group D will always be 1 or 2 s orbital electrons. Irregularities occur with Cr where it is s1d5, not s2d4 and in Group 11 metals it is s1d10 not s2d9 so that the d-subshell is complete at Group 11.
== == When metals react with other elements, the atoms of the metals give up their valence electrons.
Because atoms with the same number of valence electrons react in similar ways with other elements.
== == When metals react with other elements, the atoms of the metals give up their valence electrons.
Helium has 2 valence electrons. Group 2 elements (alkaline earth metals) also have 2 valence electrons.
Hydrogen has 1 valence electron, whereas helium has 2 valence electrons.
number of valence electrons