The two elements that have the most similar chemical properties to arsenic are Phosphorus (P) and Antimony (Sb).
Arsenic shares properties with Phosphorus and Antimony.
if an element with atomic number 118 is ever synthesized, to which group it will belong?
By looking down its column called a group
Groups on the periodic table with similar properties are called families.
All the elements known at that time could not be arranged as Dobereiner's triad's example: the three elements, nitrogen, phosphorus and arsenic have similar properties. Therefore they can be regarded to form a triad. However, the actual atomic mass if the middle element, phosphorus(P)(31.0u)is much lower than the average or mean(44.45u)of the atomic masses of nitrogen and arsenic. Thus, these three elements do not constitute a Dobereiner triad in spite of their similar chemical properties.
Elements in the same family, or group, have similar physical and chemical properties.
Elements arranged in one column exhibit similar chemical properties. Elements in same column also have similar physical properties. Also elements in same column has similar electronic configuration.
Arsenic and nitrogen are members of the same group of the periodic table of Mendeleev - group 15 (pnictides); the have have some similar chemical properties but the differences are also very important.
Lanthanides have properties similar to Cerium
Buttholes
Elements present within a same group normally have similar properties
In the same column.
is it at every tenth element
lanthanum and other lanthanides
Fluorine, at the top of the periodic table column that includes bromine.
By looking down its column called a group
Arsenic
Groups on the periodic table with similar properties are called families.
The element in a given vertical column (or groups) have the same number of valence electrons and hence have similar properties.