17+1
Groups, or Families.
The columns in the periodic table are called groups or families. These columns contain elements with similar chemical properties due to their shared number of valence electrons.
How many grams does NO from periodic table have
There are 18 groups on the periodic table.
There are 53 Elements in the Periodic Table.
There are 7 metalloids in periodic table. They are present on zigzag line in periodic table.
there are precisely 118 elements on the periodic table.
The periodic table has 7 periods on it.
7 periods and 18 groups are there on the modern periodic table.
The answer is 'groups', there are 18 main groups and two special ones (with 14 lantanides and 14 actinides respectively). Groups contain elements with the same 'outer' electron configuration (valence electrons).
The horizontal rows on the Periodic Table are called periods, while the vertical columns are called groups or families. For instance, iodine is in the same group, but different period to fluorine, chlorine and bromine.
It's 118 chemical elements in the periodic table.