Element group 1 is called the alkali metals, while element group 7 is called the halogens.
The columns on the periodic table are called Groups.
groups run top to bottom periods run left to right
The three main element groups are alkali metals , alkaline earth metals and halogen family.
The horizontal rows in the periodic table are called periods, and the vertical columns are called groups or families. Periods indicate the number of electron shells an element has, while groups determine the number of valence electrons.
Element group 1 is called the alkali metals, while element group 7 is called the halogens.
A German chemist Dobernier observed relationship between atomic masses of several groups of three elements called traids.In these groups the central or middle element had atomic mass average to the other two elements.
The columns on the periodic table are called Groups.
zinc and chromium
sister groups
groups
Scalene, Isosceles and Equilateral.
It is an old name, a synonym; groups of elemetes were compared with a family.
it is called a form
This element 53 is called: Iodine, diatomic element I2.
In the periodic table, elements from groups 1, 2, and 12, as well as elements in groups 13-18, are not considered transition elements. Transition elements are typically found in groups 3-11.
groups run top to bottom periods run left to right