How does the electronic configuration of an atom relate to its position in the Modern Periodic Table ?

Vedclass pdf generator app on play store
Vedclass iOS app on app store

In the modern periodic table, atoms with similar electronic configurations are placed in the same column. In a group, the number of valence electrons remains the same. Elements across a period show an increase in the number of valence electrons.

Similar Questions

Which element has

$(a)$ a total of three shells, with four electrons in its valence shell?

$(b)$ a total of two shells, with three electrons in its valence shell?

$(c)$ twice as many electrons in its second shell as in its first shell?

An atom has electronic configuration $2$, $8$, $7$.

$(a)$ What is the atomic number of this element ?

$(b)$ To which of the following elements would it be chemically similar ?(Atomic numbers are given in parentheses.)

$N(7)$  $F(9)$  $P(15)$  $Ar(18)$

Nitrogen (atomic number $7$) and phosphorus (atomic number $15$) belong to group $15$ of the Periodic Table. Write the electronic configuration of these two elements. Which of these will be more electronegative? Why?

What were the criteria used by Mendeléev in creating his Periodic Table ?

By considering their position in the Periodic Table, which one of the following elements would you expect to have maximum metallic characteristic ?

$Ga$         $Ge$        $As$        $Se$       $Be$