Electronic Configurations and Types of Elements

For an element of modern periodic table sum of group number and atomic number is $48$. The total number of $\mathrm{p}-$electrons is equal to group number for this element. The atomic number of element is

In a noble gas, total number of $\mathrm{p}$-electrons is equal to sum of $\mathrm{d}$ and $\mathrm{s}$ electrons. The minimum atomic number possible for that element is $\mathrm{X}$ while its period number in modern periodic table is $\mathrm{Y}$. The value of $\mathrm{X}+\mathrm{Y}$ is

Hypothetically if one orbital bear three electrons then how many groups are present in $2^{\text{nd }}$period?

An element $\mathrm{X}$ belongs to group $14$and $2\mathrm{nd}$ period of the periodic table. The atomic no. of $\mathrm{X}$ is

Which of the following has maximum number of unpaired electrons?

How many elements are present in $6^{\mathrm{th} }$ period?

An element have an $\mathrm{E}.\mathrm{C}.$ $1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^{6}3{\mathrm{s}}^{2}3{\mathrm{p}}^5$, then to which group it belongs?

Choose the correct statement(s).

Which of the following sequence contains atomic number of only representative elements?

If there were $8$ periods in the periodic table and each orbital could have maximum $5$ electrons, then maximum number of elements would be present in period 8 is $\mathrm{x},$ then $\frac{\mathrm{x}}{5}$ is

An element has $56$ nucleons in nucleus and if it is isotonic with ${{}_{30}\mathrm{Y}}^{60}$. Which group and period does it belong to?

if the atomic number of element is $33$, it will be placed in periodic table in the 

With which block ${}_{30}\mathrm{Zn}$ belongs?

The maximum number of electrons in a shell is

An element $\mathrm{X}$ belongs to group $16$ and $5^{\mathrm{th}}$ period. Its atomic number is: