calcium loses two electrons, becoming a +2 ion
Calcium is expected to lose electrons in a chemical reaction because it is a metal located in group 2 of the periodic table, which typically loses electrons to achieve a stable electron configuration. Calcium will typically form a 2+ cation by losing 2 electrons in reactions.
Calcium will lose two electrons to gain the noble gas configuration of Argon.
Calcium has two electrons in its outermost shell (the 4s subshell). To achieve a full outer shell, which would correspond to the stable electron configuration of neon, calcium must lose these two electrons. Therefore, calcium loses two electrons to gain a full outer shell.
Calcium would need to lose 2 electrons to have 8 valence electrons. This is because calcium has 2 valence electrons in its outer shell, and by losing these 2 electrons, it can achieve a stable octet configuration like the noble gas argon.
Calcium has two valence electrons in its outer shell. To achieve a stable octet configuration of eight valence electrons, it needs to lose these two electrons rather than gain any. Therefore, calcium does not need to gain any electrons; instead, it will typically lose two to achieve stability.
Calcium is more likely to lose electrons because it has two electrons in its outermost shell, making it easier for calcium to achieve a stable electron configuration by losing these two electrons to become a positively charged ion.
It loses 2 electrons to obtain the argon configuration of 8 valence electrons.
Ca must lose 2 electrons to have a complete 3n shell, which has 8 valence electrons. The ion would have a charge of 2+: Ca^2+.
The valence electrons of calcium will tend to give away electrons, as it is an alkaline earth metal with two valence electrons. This makes it more energetically favorable for calcium to lose these two electrons and achieve a full outer electron shell by forming a 2+ cation.
Calcium usually loses 2 electrons, giving a cation of Ca2+
negatively
Atoms typically do not lose protons because that would change the identity of the element. Instead, atoms can lose or gain electrons to form ions with a different charge. Protons are not generally lost by atoms in chemical reactions.