The chemical symbols for three different atomic cations that all have 19 protons : [Ca+] and [Sc2+] and [Ti3+]
Calcium:
Calcium have 20 electrons or it have 20 atomic number. Since an atom is a neutral species.
[Ca] = (1s2) (2s2) (2p6) (3s2) (3p6) (4s2)
After losing one electron atom gain positive charge and is become
[Ca+] = (1s2) (2s2) (2p6) (3s2) (3p6) (4s1)
Scandium:
Scandium have 21 electrons or it have 21 atomic number. Since an atom is a neutral species.
[Sc] = (1s2) (2s2) (2p6) (3s2) (3p6) (4s2) (3d1)
After losing two electron atom gain positive charge and is become
[Sc2+] = (1s2) (2s2) (2p6) (3s2) (3p6) (4s1)
Titanium:
Titanium have 22 electrons or it have 22 atomic number. Since an atom is a neutral species.
[Ti] = (1s2) (2s2) (2p6) (3s2) (3p6) (4s2) (3d2)
After losing three electron atom gain positive charge and is become
[Ti3+] = (1s2) (2s2) (2p6) (3s2) (3p6) (4s1)
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