one electron
the configuration of silver is
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s1
you take away one electron and the configuration is
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10
1 electron
Barium has 2 valence electrons. It needs to give up these 2 electrons to achieve a noble gas electron configuration, specifically by having a filled outer shell like a noble gas.
Strontium has 38 electrons. It needs to give up 2 electrons to achieve a noble gas electron configuration, similar to the nearest noble gas, which in this case is krypton (36 electrons).
Barium has 2 electrons in its outer shell. In order to achieve a noble gas electron configuration it needs to lose these 2 electrons. This will leave it with the same electron configuration as Xenon, a noble gas.
Silver (Ag) has 47 electrons. To achieve a pseudo-noble gas electron configuration, silver would need to give up one electron to match the electron configuration of the noble gas, krypton (Kr), in which the outermost energy level is full. This would leave silver with 46 electrons.
Losing an electron cesium has a noble gas configuration.
4 but it will need energy, so carbon gain 4 electrons to achieve a noble gas configuration.
nitrogen should give 5 electrons (or better gain 3 electrons) to attain noble gas configuration.
Calcium has to lose 2 electrons to form noble gas configuration.
Barium has 2 valence electrons. It needs to give up these 2 electrons to achieve a noble gas electron configuration, specifically by having a filled outer shell like a noble gas.
Strontium has 38 electrons. It needs to give up 2 electrons to achieve a noble gas electron configuration, similar to the nearest noble gas, which in this case is krypton (36 electrons).
Two electrons
Barium has 2 electrons in its outer shell. In order to achieve a noble gas electron configuration it needs to lose these 2 electrons. This will leave it with the same electron configuration as Xenon, a noble gas.
Boron must give up 3 electrons in order to achieve a noble-gas electron configuration.
Silver (Ag) has 47 electrons. To achieve a pseudo-noble gas electron configuration, silver would need to give up one electron to match the electron configuration of the noble gas, krypton (Kr), in which the outermost energy level is full. This would leave silver with 46 electrons.
2
Losing an electron cesium has a noble gas configuration.
Boron has 5 electrons in its outer shell, and it needs to give up 3 electrons to achieve a stable electron configuration, which is the same as the nearest noble gas, helium.