calcium
The periodic trends that arise from the arrangement of the periodic table provide chemists with an invaluable tool to quickly predict an element's properties. These trends exist because of the similar atomic structure of the elements within their respective group families or period and the periodic nature of the elements.
Lithium is the smallest element in the periodic table if Hydrogen and Helium are excluded.
The seventh most abundent element is potassium.
Alkali metals. This is the most reactive group on the periodic table
CO3 is not placed in periodic table. Only elements are arranged in periodic table.
5
There is no such element on the Periodic Table
Helium is the element that is placed in period 1 and group 18 of the periodic table. It is inert in nature and hence stable.
Helium is located on the group 18 and period 1 on the modern periodic table.
Silver is the 47th element on the periodic table. It is located in period 5 and group 11 in the periodic table.
beryllium, Be
A group in Periodic Table is the column of element in periodic table
the Atomic number on Periodic Table is the identity of an element in the table , it gives the indications about Group, period and Block of elements it also predicts the chemical and physical properties of the element.
In the older versions of the periodic table, group VIIA corresponds to the current group 17, the halogens.
Group 17, period 2
Chlorine.
cromium