Question

What is the atomic number of Gold?

Answer 1

Hint : Gold is a chemical element with the symbol (from Latin: Aurum).it occurs naturally in a pure form , it is bright, slightly reddish yellow, dense, soft malleable, and ductile metal. Chemically, gold is a transition metal and a group $11$ element. It is one of the least reactive elements.

Complete Step By Step Answer:
The atomic number of gold is $79$ , making it one of the highest atomic number elements. Its electronic configuration of an element is defined as the number of electrons present in orbits of atoms or molecules. In the case of gold, there are $79$ electrons present in the six shells of the gold atom. The number of electrons in each orbit is $2,8,18,32,18,1$ . The electronic configuration of gold is:
$1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}3{d^{10}}4{s^2}4{p^6}4{d^{10}}4{f^{14}}5{s^2}5{p^6}5{d^{10}}6{s^1}$ or $[Xe]4{f^{14}}5{s^2}5{p^6}5{d^{10}}6{s^1}$
Periodic table is arranged by atomic number, the number of protons in the nucleus which is the same as the number of electrons. The atomic number increases from left to right. Periodic table starts at top left (Atomic number $1$ ) and ends at bottom right (atomic number $118$ ). Therefore you can directly look for atomic number $79$ to find gold on the periodic table.
Another way to read the periodic table and locate the element is by using group number (column) and periodic number (row). To locate gold on the periodic table look for the cross section of group $11$ and period $6$ in the periodic table.

Note :
Gold is a noble metal. It is relatively unreactive and resists degradation by air, moisture or acidic condition. While acids dissolve most metals, a special mixture of acid called aqua regia is used to dissolve gold. High-purity metallic gold is odorless and tasteless. This makes sense since metal is unreactive. Metal ions confer flavor and odor to metallic elements and compounds. Gold has many uses aside from its monetary and symbolic value. Among other applications, it is used in electronic, electrical wiring, dentistry, medicine, radiation shielding, and in coloring glass.