an ionic compound is formed
Rubidium typically loses an electron to achieve a stable electron configuration, forming a 1+ cation. This means that rubidium gains no atoms; instead, it loses an electron to become a positively charged ion.
Selenium typically loses 2 electrons to achieve a stable electron configuration. This results in the formation of a 2+ ion for selenium.
Boron can lose 3 electrons from its valence shell that is 2 in 2s & 1 in 2p sub-shell, wheras it cannot gain electron b'coz of its electropositive nature & it has less electron affinity.
Calcium loses two electrons to obtain a noble-gas electron configuration.
An atom with six electrons is generally more stable than an atom with one electron. This is because atoms tend to be more stable when their outer electron shell is filled with electrons. Atoms strive to achieve a stable electron configuration, such as a full outer shell, which contributes to their overall stability.
Rubidium typically loses an electron to achieve a stable electron configuration, forming a 1+ cation. This means that rubidium gains no atoms; instead, it loses an electron to become a positively charged ion.
Ions can be formed from atoms through the gain or loss of electrons. When an atom gains electrons, it becomes negatively charged and forms an anion, whereas when it loses electrons, it becomes positively charged and forms a cation.
When an atom gains or loses electrons, it gains a negative or positive charge respectively. Atoms generally try to gain enough electrons to fill their outer, valence electron shell. For the first shell the number of electrons is 2 and for all others, atoms usually want 8 electrons.
When it gain electrons, it loses ions. (non-metal) Where as when it loses electron, it gains ions. (metal)
Calcium usually loses 2 electrons, giving a cation of Ca2+
Selenium typically loses 2 electrons to achieve a stable electron configuration. This results in the formation of a 2+ ion for selenium.
Barium loses electrons to obtain a stable octet, like any other metal.
Lithium has one valence electron. It is much easier for an atom to lose one electron than gain seven more. Lithium looses this one electron to achieve a full outer shell (the next inside shell is full).
If the chemical bond is ionic, an electron is gained or lost. If it is covalent, the electron is shared equally; if it is polar covalent, the electron is shared unequally. If the bond is intermolecular, no parts of the atom are actually shared, gained, or lost; the atom itself is simply attracted to other atoms.
Two sodium atoms are needed to provide the 2 electrons necessary to complete the valence octet of an oxygen atom. Sodium typically loses one electron to achieve a stable electron configuration, which can then be transferred to an oxygen atom to satisfy its electron needs.
Boron can lose 3 electrons from its valence shell that is 2 in 2s & 1 in 2p sub-shell, wheras it cannot gain electron b'coz of its electropositive nature & it has less electron affinity.
most non metals (except for the group 18 elements) NITROGEN(N) SULFUR(s) CHLORINE (CI)