Name an element which has a total of two shells and there are three electrons in its valence shell.
Name an element which has a total of two shells and there are three electrons in its valence shell.
The arrangement of elements are done in periods and groups. Periods have rising atomic numbers that are horizontal rows while the groups are vertical columns with similar chemical properties. 7 periods and 18 groups are in periodic table.
The outermost shell is the valence shell of the element. The elements in groups have similar electronic configuration of the valence shell.
Step-1:
Number of valence electrons in the valence shell = 3
Number of valence electrons + 10= Number of group
So, the element belong to group 13.
Step-2:
Number of valence shell = 2
Number of valence shell = Number of period
So, the element belong to period 2.
Final answer:
Therefore, the element that has total of two shells and three electrons in valence shell is Boron (B). Boron belongs to period 2 and group 13.
The arrangement of elements are done in periods and groups. Periods have rising atomic numbers that are horizontal rows while the groups are vertical columns with similar chemical properties. 7 periods and 18 groups are in periodic table.
The outermost shell is the valence shell of the element. The elements in groups have similar electronic configuration of the valence shell.
Step-1:
Number of valence electrons in the valence shell = 3
Number of valence electrons + 10= Number of group
So, the element belong to group 13.
Step-2:
Number of valence shell = 2
Number of valence shell = Number of period
So, the element belong to period 2.
Final answer:
Therefore, the element that has total of two shells and three electrons in valence shell is Boron (B). Boron belongs to period 2 and group 13.
