To determine the electronic configuration of an element, we need to fill electrons into orbitals according to the Aufbau principle, Pauli exclusion principle, and Hund's rule. The atomic number indicates the total number of electrons in a neutral atom. We can use noble gas core notation for brevity.
At this point, we have filled 18 electrons. The element with 18 electrons is Argon (Ar), which is a noble gas. So, we can use the noble gas core notation \([\text{Ar}]\) for the first 18 electrons.
A) \([\text{Ar}] 3d^{10} 4s^2 4p^5\) is the correct electronic configuration for an element with atomic number 35 (Bromine). It correctly accounts for all 35 electrons following the Aufbau principle and using the Argon noble gas core.
The question asks for the IUPAC name of the element with atomic number \(Z = 117\). The IUPAC system for naming elements with atomic numbers greater than 100 uses specific numerical roots for each digit. We need to apply these roots to the atomic number 117 and then identify the corresponding recognized name.
D) Tennessine (Ts) — formerly Ununseptium (Uus). This is the official name for the element with atomic number 117. Ununseptium (Uus) was its temporary systematic IUPAC name before it received its permanent name, Tennessine (Ts).
The question asks to identify the groups in the periodic table where s-block elements are located. This requires knowledge of the classification of elements into blocks (s, p, d, f) based on their electronic configuration.
Correct Option: D) Groups 1 and 2 are where the s-block elements are primarily located. Group 1 elements have an \((ns^1)\) configuration, and Group 2 elements have an \((ns^2)\) configuration.
The question asks about the placement of p-block elements in the modern periodic table. To answer this, we need to recall the general structure of the periodic table and the classification of elements into s, p, d, and f blocks based on their electronic configurations.
Correct Option: C) Groups 13 to 18
The question asks to identify the groups in the periodic table that are occupied by d-block elements, also known as transition metals. Understanding the organization of the periodic table is key to answering this question.
Groups 3 to 12 correctly represent the d-block elements (transition metals) in the periodic table. These elements are characterized by the progressive filling of the d-orbitals of the penultimate energy level.
The question asks about the placement of f-block elements (lanthanides and actinides) in the periodic table. We need to recall the structure of the periodic table and the classification of elements within it.
D) Below the main table in two separate series (Periods 6 and 7), as inner transition elements. This accurately describes the placement and classification of f-block elements.