Question

How do you determine the electron configuration of "W"?

Answer 1

Tungsten is a beautiful greyish-white metal that is solid at ambient temperature. Tungsten has the greatest melting point and lowest vapour pressure of all metals, as well as the best tensile strength at temperatures above 1650°C. It resists corrosion well and is very mildly affected by most mineral acids.

Complete step-by-step solution:
Tungsten, often known as wolfram, is a chemical element with atomic number 74 and the symbol W. Tungsten is a rare metal that is almost entirely found in nature in compounds with other metals. It was discovered as a new element in 1781 and separated as a metal for the first time in 1783. Tungsten, scheelite, and wolframite are some of the most significant ores, with the latter giving the element its alternative name.
We need to discover the noble gas that is nearest to tungsten on the periodic table, which is: Xenon is a kind of xenon gas (Xe)
As a result, the electron configuration's first component is: [Xe] $1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}4{s^2}3{d^{10}}4{p^6}5{s^2}4{d^{10}}5{p^6}$
Because tungsten has an atomic number of 74 and xenon has an atomic number of 54, tungsten has 20 electrons and xenon has 54.
Using aufbau principle
The aufbau principle, sometimes known as the aufbau rule, says that when an atom or ion is in its ground state, electrons fill atomic orbitals of the lowest possible energy levels before moving on to higher levels. The 1s subshell, for example, is occupied before the 2s subshell.
The electron configuration in order of energy (n value): $[Xe]6{s^2}{\text{ }}4{f^{14}}{\text{ }}5{d^4}$
Thus $\left[ {Xe} \right]{\text{ }}4{f^{14}}{\text{ }}5{d^4}{\text{ }}6{s^2}$

Note: Tungsten is found in a variety of alloys that are used in a variety of applications, including incandescent light bulb filaments, X-ray tubes, gas tungsten arc welding electrodes, superalloys, and radiation shielding. The hardness and high density of tungsten make it ideal for military use in piercing projectiles. Industrial catalysts frequently employ tungsten compounds. Tungsten is the only metal in the third transition series known to exist in biomolecules, with only a few bacteria and archaea species containing it. Tungsten, on the other hand, interferes with the metabolism of molybdenum and copper and is poisonous to most animals.