Calcium has 20 electrons
period 3 elements in the periodic table have 3 electrons in there outher shell hence the name.
A calcium atom tends to lose two electrons. This is because calcium has two electrons in its outermost shell (the fourth period of the periodic table), and it typically seeks to achieve a stable electron configuration by losing these two valence electrons. As a result, calcium commonly forms a +2 cation (Ca²⁺) in chemical reactions.
Chlorine has 17 electrons. It is displayed as atomic number in periodic table.
In the Lewis structure of calcium sulfide (CaS), calcium donates its two valence electrons to sulfur, forming a bond. Calcium, being in group 2 of the periodic table, has no lone pairs of electrons in its final state after bonding. Therefore, in the Lewis structure of calcium sulfide, there are zero lone pairs of electrons associated with the calcium atom.
Chlorine (Cl) has 7 valence electrons, as it is in Group 17 or 7A of the periodic table. This means it has 7 electrons in its outermost energy level.
8 all together
There are 2 electrons on the outermost shell of calcium.
its in column two on the periodic table, so therefor it has two valence electrons .
There are 2 electrons in valence shell of calcium. :-)
Calcium has 2 valence electrons. It is in group 2 of the periodic table, which means it has 2 electrons in its outermost energy level.
Calcium is in group II of the periodic table meaning that it has 2 valence electrons. These are the electrons that are involved in making a chemical bond, so the answer to your question is TWO.
I believe it is 2, seeing it is a metal, and has 2 valence electrons. Correct me if I'm wrong, I don't have my periodic table with me (Calcium -> Ca?).
I am not sure what you mean by atoms, i think you mean electrons (part of an atom).Calcium is in Group 2 of the periodic table so this means that in order to become stable it will lose 2 electrons.
Calcium typically loses 2 electrons to achieve a stable electron configuration, forming a Ca2+ cation. This allows calcium to achieve a full outer energy level of 8 electrons, similar to a noble gas configuration.
The d block of the periodic table contains 10 valence electrons.
period 3 elements in the periodic table have 3 electrons in there outher shell hence the name.
Xenon has 54 electrons.