Calcium has 20 electrons and would need to give up 2 electrons to achieve a noble gas configuration like argon, which has 18 electrons. This would result in a +2 charge for the calcium ion.
An atom of nitrogen needs 3 more electrons to achieve a stable, noble gas electron configuration. This would give nitrogen a total of 8 valence electrons, making it isoelectronic with a noble gas (in this case, neon).
Boron has 5 electrons in its neutral state. To form a noble gas configuration, boron needs to lose 3 electrons to achieve the stable electron configuration of a noble gas, like neon.
Phosphorus has to gain a total of 3 electrons to achieve a noble gas configuration. You can find this for any non-metal because the last digit of its group number is the number of valence electrons it has. For example Phosphorus has 5 and Sulfur has 6. In order to achieve a noble gas electron configuration, you must have 8 valence electrons, so phosphorus must gain 3.
Sodium needs to lose one electron to achieve a noble gas configuration because it is easier for it to lose an electron rather than gain seven more electrons to fill its outermost energy level like a noble gas.
4 but it will need energy, so carbon gain 4 electrons to achieve a noble gas configuration.
Calcium has 20 electrons and would need to give up 2 electrons to achieve a noble gas configuration like argon, which has 18 electrons. This would result in a +2 charge for the calcium ion.
An atom of nitrogen needs 3 more electrons to achieve a stable, noble gas electron configuration. This would give nitrogen a total of 8 valence electrons, making it isoelectronic with a noble gas (in this case, neon).
Group 6A elements have 6 valence electrons and need to gain 2 electrons to achieve a full octet and become stable like a noble gas.
Halogens have seven valence electrons and need to gain one electron to achieve a stable noble gas electron configuration, similar to the nearest noble gas in the periodic table.
Silver (Ag) has 47 electrons. To achieve a pseudo-noble-gas electron configuration, silver would need to lose one electron to achieve a stable electron configuration that resembles a noble gas configuration like argon.
An atom with atomic number n needs to gain enough electrons to have the same number of electrons as the nearest noble gas in the periodic table. This would typically involve gaining 8 electrons to achieve the stable electronic configuration of a noble gas.
Boron has 5 electrons in its neutral state. To form a noble gas configuration, boron needs to lose 3 electrons to achieve the stable electron configuration of a noble gas, like neon.
Phosphorus has to gain a total of 3 electrons to achieve a noble gas configuration. You can find this for any non-metal because the last digit of its group number is the number of valence electrons it has. For example Phosphorus has 5 and Sulfur has 6. In order to achieve a noble gas electron configuration, you must have 8 valence electrons, so phosphorus must gain 3.
Sodium needs to lose one electron to achieve a noble gas configuration because it is easier for it to lose an electron rather than gain seven more electrons to fill its outermost energy level like 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.
A nitrogen atom needs to gain three electrons to achieve a stable electron configuration similar to a noble gas. This would result in the nitrogen atom having a full outer electron shell, like that of a noble gas.