Metals as found in the Periodic Table have no "extra" electrons. They are electrically neutral because they have the same amounts of protons and electrons or + and - charges respectively.
However metals react with non-metals to form Ions, cations to be more precise, in this case they actually lose electrons resulting in a positive charge. In other words, metals never have "extra" electrons, they either have a neutral charge or they are lacking electrons and have a negative charge.
1,2,3 valence electrons
one valence electrons
No. Alkali metals have one valence electrons. Halogens have 7 valence electrons.
1
alkaline earth metals (group 2 elements) have two valence electrons
== == When metals react with other elements, the atoms of the metals give up their valence electrons.
one valence electrons
Alkaline earths have 2 valence electrons.
No. Alkali metals have one valence electrons. Halogens have 7 valence electrons.
The alkaline earth metals are those in the same group as calcium; they have two valence electrons.
The alkali earth elements have TWO valence electrons.
2 valence electrons are in iridium because iridium is a transition metal. Most transitions metal would have 2 valence electrons because the group before the transition metals are the alkaline-earth metals which contains 2 valence electrons in that group making the transition metals have 2 valence electrons.
1
Copper (Cu) has 2 valence electrons. It is located in the middle group of elements, called Transition Metals, and all transition metals have 2 valence electrons...hope that helped! =D
yes
1 valence electron in alkali metals.
Metals lose electrons in a chemical reaction.
alkaline earth metals (group 2 elements) have two valence electrons