Recall that atoms gain or lose electrons to become lons. So, an lon has a different number of electrons than its corresponding neutral atom. Positive ions have lost electrons, and negative lons have gained electrons.
The table includes the electron configuration of several lons. Complete the rows for magnesium and oxygen (oxide) lons
by identifying the correction charge, electron configuration, and neutral atom with the same configuration as the lon.
You may need to use online resources or the periodic table to determine the correct lon charges.
Select the correct answer from each drop-down menu to complete the table.
lon
Ion Charge
Electron Configuration
Neutral Atom with similar
Electron Configuration
neon
sodium
1+
15²25²205
magnesium
3+
neon
aluminum
potassium
calcium
1+
152 2s 2p
152 2s 2p 3s 3p
1s 2s 2p 3s 3p
152 2s 2p
argon
argon
2-
nitrogen (nitride)
3-
neon
oxygen (oxide)
neon
fluorine (fluoride)
sulfur (sulfide)
chlorine (chloride)
2-
152 2s 2p
15²252 226 35² 3p6
152 2s 2p 3s 3p
argon
argon
1-