It can lose 1.
Aluminum will lose 3 electrons to form Al3+ ion.
Nitrogen can gain 3 electrons to achieve a full outer shell with 8 electrons, or lose 5 electrons to achieve a stable electron configuration similar to the noble gas neon.
Sulfur, with its 6 valence electrons, will gain 2 electrons to achieve a stable octet configuration, resulting in a charge of -2.
Phosphorus wants to gain three electrons to have 8 valence electrons.
Potassium will lose 1 electron to form a 1+ ion.
Se will gain electrons
Si ( Silicon) is in the same group as carbon. As a consequence it has four outer electrons. These four electrons covalently bond to other atoms, in the same manner as carbon. Si does NOT gain or lose electrons in the sense of ionisation.
it will lose 3 electrons
Selenium may lose 2, 4 or 6 electrons and may gain 2 electrons.
It will lose 2 electrons.
45
Silicon gains 4 electrons.
Phosphorus wants to gain three electrons to have 8 valence electrons.
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.
5s orbital
Aluminum will lose 3 electrons to form Al3+ ion.
Phosphorus can gain up to three electrons to achieve a full outer shell and form the phosphide ion (P3-), or lose up to three electrons to achieve a stable electron configuration and form the phosphorus cation (P3+).