Mg+2 is isoelectronic species with ................ (give 2 species)
Ne
Al^3+
Na^+
To determine the species that are isoelectronic with Mg+2, we need to find other ions or atoms that have the same number of electrons.
To do this, we first need to know the electron configuration of Mg. Magnesium (Mg) has an atomic number of 12, which means it has 12 electrons. Its electron configuration can be written as: 1s^2 2s^2 2p^6 3s^2.
Now, Mg+2 means that it loses two electrons, resulting in the removal of the 3s^2 electrons. Therefore, the electron configuration of Mg+2 becomes: 1s^2 2s^2 2p^6.
Next, we look for other species that have the same electron configuration of 1s^2 2s^2 2p^6. Two examples of isoelectronic species with Mg+2 are:
1. Ne (Neon): Neon has an atomic number of 10, which means it has 10 electrons. The electron configuration of neon is 1s^2 2s^2 2p^6, which is the same as Mg+2.
2. Na+ (Sodium ion): Sodium (Na) has an atomic number of 11, which means it has 11 electrons. However, Na+ loses one electron to become a positive ion, so it has an electron configuration of 1s^2 2s^2 2p^6, the same as Mg+2.
Therefore, two species that are isoelectronic with Mg+2 are Ne (Neon) and Na+ (Sodium ion). By comparing electron configurations, we can identify other isoelectronic species as well.