Antimony Valence Electrons
Why antimony has 5
Antimony has 51 electrons, arranged as 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p3. The highest shell is n = 5, holding 5s2 5p3, so 2 + 3 = 5.
Antimony is in group 15; for groups 13–18 subtract 10 from the group number.
What that means for bonding
Antimony needs 3 more electrons to complete an octet, so it tends to gain 3 (forming Sb3−) or share 3 in 3 covalent bonds.
Electrons per shell: 2, 8, 18, 18, 5. See the antimony electron configuration and orbital diagram or the full antimony data sheet.
Same group, same count
Antimony valence electrons FAQ
How many valence electrons does antimony have?
Antimony has 5 valence electrons. Its electron configuration is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p³, and the outermost shell (n = 5) holds 5s² + 5p³.
How do you find the valence electrons of antimony?
Antimony is in group 15; for groups 13–18 subtract 10 from the group number.
How many bonds does antimony form?
Antimony needs 3 more electrons to complete an octet, so it tends to gain 3 (forming Sb3−) or share 3 in 3 covalent bonds.
What is the Lewis dot structure of antimony?
The symbol Sb with 5 dots around it, one per valence electron, placed singly on each side before any side is paired.
How many core electrons does antimony have?
46: 51 electrons in total minus the 5 valence electrons.