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Metalloids typically have 3 to 6 valence electrons. This intermediate number of valence electrons allows metalloids to exhibit both metal and non-metal characteristics.
Calcium is a metal that has two valence electrons.
Calcium is a non metal element. There are 20 electrons in a single atom.
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.
Rubidium has one valence electron as it an alkali metal.
they all have one valence electron.
Gallium is a mono-atomic metal element. So their atoms are atoms, and as many as you have!
The alkaline earth metals are those in the same group as calcium; they have two valence electrons.
All alkali earth metals have 2 valence electrons.
Beryllium is the alkaline earth metal that has 2 valence electrons.
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Nonmetals attract electrons.