Select the correct option about element $\mathrm{UuO}$.

Comprehension given below is followed by a question. The question has one correct option. Choose the correct option.

In the modern periodic table, elements are arranged in order of increasing atomic numbers which is related to the electronic configuration. Depending upon the type of orbitals receiving the last electron, the elements in the periodic table have been divided into four blocks, viz. $s, p, d$ and $f$.

The modern periodic table consists of $7$ periods and $18$ groups. Each period begins with the filling of a new energy shell. In accordance with the Aufbau principle, the seven periods ($1$ to $7$) have $2, 8, 8, 18, 18, 32$ and $32$ elements respectively. The seventh period is still incomplete. To avoid the periodic table being too long, the two series of $f$-block elements, called lanthanoids and actinöids are placed at the bottom of the main body of the periodic table.

The last element of the $\mathrm{p}$-block in the $6^{\mathrm{th}}$ period is represented by the outermost electronic configuration.

Comprehension given below is followed by some multiple choice questions. Each question has one correct option. Choose the correct option.

In the modern periodic table, elements are arranged in order of increasing atomic numbers which is related to the electronic configuration. Depending upon the type of orbitals receiving the last electron, the elements in the periodic table have been divided into four blocks, viz. $s, p, d$ and $f$.

The modern periodic table consists of $7$ periods and $18$ groups. Each period begins with the filling of a new energy shell. In accordance with the Aufbau principle, the seven periods ($1$ to $7$) have $2, 8, 8, 18, 18, 32$ and $32$ elements respectively. The seventh period is still incomplete. To avoid the periodic table being too long, the two series of $f$-block elements, called lanthanoids and actinöids are placed at the bottom of the main body of the periodic table.

Which of the elements whose atomic numbers are given below, cannot be accommodated in the present set up of the long form of the periodic table?

Comprehension given below is followed by some multiple choice question. Each question has one correct option. Choose the correct option.

In the modern periodic table, elements are arranged in order of increasing atomic numbers which is related to the electronic configuration. Depending upon the type of orbitals receiving the last electron, the elements in the periodic table have been divided into four blocks, viz. $s, p, d$ and $f$.

The modern periodic table consists of $7$ periods and $18$ groups. Each period begins with the filling of a new energy shell. In accordance with the Aufbau principle, the seven periods ($1$ to $7$) have $2, 8, 8, 18, 18, 32$ and $32$ elements respectively. The seventh period is still incomplete. To avoid the periodic table being too long, the two series of $f$-block elements, called lanthanoids and actinöids are placed at the bottom of the main body of the periodic table.

The electronic configuration of the element, which is just above the element with atomic number $43$ in the same group is ______

Comprehension given below is followed by some multiple choice questions. Each question has one correct option. Choose the correct option.

In the modern periodic table, elements are arranged in order of increasing atomic numbers which is related to the electronic configuration. Depending upon the type of orbitals receiving the last electron, the elements in the periodic table have been divided into four blocks, viz. $s, p, d$ and $f$.

The modern periodic table consists of $7$ periods and $18$ groups. Each period begins with the filling of a new energy shell. In accordance with the Aufbau principle, the seven periods ($1$ to $7$) have $2, 8, 8, 18, 18, 32$ and $32$ elements respectively. The seventh period is still incomplete. To avoid the periodic table being too long, the two series of $f$-block elements, called lanthanoids and actinöids are placed at the bottom of the main body of the periodic table.

The elements with atomic number $35, 53$and $85$ are all: