That would be iodine (I).
The number of electrons in the highest occupied energy level of an element in Group 15 is 5. Group 15 elements have 5 valence electrons, which occupy the highest energy level.
see what period it is in on the periodic table it is in period 6, so therefore there are 6 electron shells or energy levels
One example of an element that belongs to both group 5B (Group 15) and period 5 of the periodic table is antimony (Sb). Antimony has 5 valence electrons, placing it in group 5B, and it is in period 5, indicating the energy level of its electron shells.
The element in group 18 period 5 is Xenon (Xe).
The element in group 4 period 5 is Zirconium (Zr).
The element in group V of the periodic table with 3 electron shells is Phosphorus (P). Group V elements have 5 valence electrons and the number of electron shells corresponds to the period number on the periodic table, so a Group V element with 3 electron shells is in period 3.
The number of electrons in the highest occupied energy level of an element in Group 15 is 5. Group 15 elements have 5 valence electrons, which occupy the highest energy level.
see what period it is in on the periodic table it is in period 6, so therefore there are 6 electron shells or energy levels
One example of an element that belongs to both group 5B (Group 15) and period 5 of the periodic table is antimony (Sb). Antimony has 5 valence electrons, placing it in group 5B, and it is in period 5, indicating the energy level of its electron shells.
since it is in period 5 it contains 4d and 3d levels which both hold 10 electrons each. so therefore I (53) has 20 d electrons
The element with atomic number 45 is Rhodium (Rh). Rhodium is a transition metal in Group 9, Period 5 of the Periodic Table. Rhodium has 45 electrons in 5 shells with 1 electron in the outer shell.
The element that has 5 energy levels and is in group 2 of the periodic table is Calcium (Ca). It has 20 electrons in total, with 2 in the first energy level and 8 each in the second and third energy levels, and 2 in the fourth energy level.
The chemical element with the atomic number 51 is Antimony (Sb). Antimony is a Metalloid in Group 15(5) of the Periodic Table. It has 51 electrons in 5 electron shells with 5 electrons in the outer shell.
The element with atomic number 45 is Rhodium (Rh). Rhodium is a transition metal in Group 9, Period 5 of the Periodic Table. Rhodium has 45 electrons in 5 electron shells with 1 electron in the outer shell.
The element in group 18 period 5 is Xenon (Xe).
There is no element that has been found yet with those characteristics ( group 5, period 2)
The element in group 4 period 5 is Zirconium (Zr).