what charge does al typically have in ionic compounds, and why?\na +1, because in the ground state it has…
what charge does al typically have in ionic compounds, and why?\na +1, because in the ground state it has one unpaired electron.\nb +2, because it has two electrons in the 2s subshell.\nc +3, because it has three valence electrons.\nd +4, because it is in the fourth row of the periodic table.
Answer
Explanation:
Step1: Determine the electron configuration of Al
Aluminum (Al) has an atomic number of 13. Its electron configuration is (1s^{2}2s^{2}2p^{6}3s^{2}3p^{1}). In the ground state, it has three valence electrons ((3s^{2}3p^{1})).
Step2: Analyze the formation of ionic compounds
When forming ionic compounds, metals tend to lose electrons to achieve a noble - gas configuration. Al loses three electrons ((3s^{2}3p^{1}) electrons) to form (Al^{3 +}) with the electron configuration (1s^{2}2s^{2}2p^{6}) (similar to neon).
Answer:
C. +3, because it has three valence electrons.