Respuesta :
Answer: The questions looks unclear
Explanation: Periodic table is a table that contains elements arranged according to their increasing atomic number.
1. D belongs to group 4
E. Belongs to group 7
B belongs to group 1
A belongs to group 8. A noble gas.
R belongs to group 3. K belongs to group 6 C belongs to group 1. H belongs to group 8
The periodic table has been the arrangement of the elements in the increasing order of atomic number across group, and increasing order of atomic shell in period.
From the given description of the elements in the periodic table, the elements can be determined as:
The element D has 4 valence electrons, thus it has been present in group 4 of the periodic table.
The element E has the highest electronegativity, thus it has been a halogen of group 8.
The ionization energy decreases down the group, thus element B has been present in period 2 or period 1.
The chemical reactivity decreases across the period. Thus, the arrangement of M, F, and L has been in the increasing order.
The arranged periodic table has been attached in the image below.
For more information about periodic table, refer to the link:
https://brainly.com/question/11155928?
