6
umm, its 4. Periods are horizontal lines on the Periodic Table of elements.
Oxygen has 6 valence electrons, while selenium has 6 valence electrons as well. Both oxygen and selenium are in the same group, Group 16 (also known as Group VIA or Group 6) of the periodic table. They are not in the same period – oxygen is in period 2, while selenium is in period 4.
Selenium is located in Group 16, Period 4 of the periodic table. It is a nonmetal element with the symbol Se and atomic number 34.
Selenium (Se) is in oxygen family (group 16 or VIA) and in 4th period.
It is a lanthanide in period 6.
Oxygen, Sulphur, Selenium, Tellurium, Polonium, and Livermorium. Have similar chemical properties as they are all in Group VIA (16). However, the last two are radio-active and not found in the open lab.
They are in the same group and they are not in the same period.
No. they belong to different groups and hence have different properties
Oxygen has 6 valence electrons, while selenium has 6 valence electrons as well. Both oxygen and selenium are in the same group, Group 16 (also known as Group VIA or Group 6) of the periodic table. They are not in the same period – oxygen is in period 2, while selenium is in period 4.
period 4 oxygen family or chalcogens
sulphur, selenium, tellurium and polonium belong to the oxygen family.
Sulfur is a fourth period representative element that has similar properties to oxygen. Both elements belong to group 16 of the periodic table, also known as the oxygen group, and have similar chemical reactivity.
Period 4
Classical period
Sulphur, selenium, tellurium, polonium and Uuh are other members of oxygen family.
Selenium is located in Group 16, Period 4 of the periodic table. It is a nonmetal element with the symbol Se and atomic number 34.
The nonmetal in period 4 that is more reactive than selenium is sulfur. Sulfur is located above selenium in the same group (group 16) on the periodic table, making it more reactive due to its higher electronegativity and tendency to gain electrons in chemical reactions.
niobium period