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Umm... Why can't you? That is what IUPAC has decreed!
The history behind the recently accepted IUPAC labelling of the elements is that there was an ambiguity in the older VI A/VI B label -- chromium was sometimes placed in group VI A and sometimes in group VI B, while selenium was placed in the opposite one. It was also unfortunate that iron, cobalt, and nickel were all placed in group VIII.
When it was decided that selenium belonged in group 16 and chromium in group 6, it became obvious that oxygen and sulfur should be placed in group 16, because they have more points of similarity with selenium than with chromium.
What else can I help you with?
What is the period and group on the periodic table for the element oxygen?
oxygen is a type of gas, so it falls into the gas section. oxygen has six electrons in its outer shell so it belongs to group VIA in periodic table.
What is the group number of the oxygen family?
oxygen isn't a family name, but the number of the group that oxygen is in is 16
What is the oxygen family group number?
group 16
What group is oxygen?
Oxygen is a non-metal element and belongs to Group 16 (formerly Group VIA) of the periodic table. It has the atomic number 8 and is essential for sustaining life on Earth.
What is the group number for oxegen?
Oxygen is in group 16, period 2
Which element has the lowest atomic number of group 16 elements?
Oxygen is the element having atomic number 8. It is present in group-16.
What is oxygen's location on the periodic table?
Oxygen is in Group 16, Period 2. It's atomic number is 8. It's symbol is "O".The elements that surround oxygen on the periodic table are: N on the left, F on the right, He above it, and Si below it.
What is the group number for the element sulfur?
The group number for sulfur is 16 in the periodic table. This means that sulfur belongs to Group 16, also known as the oxygen group or chalcogen group.
Where is oxygen placed in the periodic table?
Oxygen is at the top of Group 16. It has an atomic number of 8.
This element has the lowest atomic number in group 16?
Nitrogen
Why does an element have the atomic number of 8?
Oxygen has atomic number 8. It is placed in group-16.
This element has the lowest atomic number of Group 16 elements?
Oxygen I believe
