Periodic table group
Group 15
Group 15 is a vertical column of the periodic table containing Nitrogen, Phosphorus, Arsenic, Antimony, Bismuth, Moscovium. Elements in the same group have the same number of valence electrons, which is why they show related chemical behavior. The pnictogens. Five valence electrons shape their chemistry, and the group runs from the essential nonmetals nitrogen and phosphorus down to the metal bismuth.
At a glance
- Elements
- 6
- Atomic numbers
- 7 to 115
- Block
- p-block
- Periods
- 2, 3, 4, 5, 6, 7
- Phase at STP
- solid (4), gas (1)
Shared properties
- Same valence electron count, so members react in related ways
- Atomic radius increases down the group as electron shells are added
- First ionization energy generally decreases down the group
The 6 elements
Frequently asked questions
What elements are in group 15?
Group 15 contains 6 elements: Nitrogen, Phosphorus, Arsenic, Antimony, Bismuth, Moscovium.
What properties do group 15 elements share?
Elements in group 15 have the same number of valence electrons, so they react in related ways. Atomic radius increases down the group as electron shells are added, and first ionization energy generally decreases down the group. The pnictogens. Five valence electrons shape their chemistry, and the group runs from the essential nonmetals nitrogen and phosphorus down to the metal bismuth.