Question

What is the element with the symbol Au?

Answer 1

Hint : To answer this question, we first need to understand what are elements. An element is a pure substance made up entirely of atoms with the same number of protons in their atomic nuclei, as defined by chemistry. Chemical elements, unlike chemical compounds, cannot be broken down chemically into simpler molecules.

Complete Step By Step Answer:
Chemical symbols - Chemical symbols are acronyms for chemical elements, functional groups, and chemical compounds that are used in chemistry. Chemical element symbols are typically composed of one or two letters from the Latin alphabet, with the first letter capitalized. Each chemical element has its own character in Chinese, which is usually constructed for that reason (see Chemical Elements in East Asian languages). Latin symbols, on the other hand, are frequently utilized, particularly in formulas.
Au – Gold is a naturally occurring chemical element with the symbol Au and atomic number 79, making it one of the higher atomic number elements. It is a bright, somewhat reddish yellow, dense, soft, malleable, and ductile metal in its purest form. Gold is a transition metal and a member of group 11 of the periodic table. It's one of the least reactive chemical elements, and it's solid at room temperature.
 In rocks, veins, and alluvial deposits, gold is frequently found in its free elemental form, as nuggets or grains. It can be found in a solid solution series with the native element silver, naturally alloyed with other metals such as copper and palladium, and as mineral inclusions in pyrite. It can also be found in minerals as gold compounds, frequently in combination with tellurium (gold tellurides).
So, we conclude that Au is the symbol of element Gold.

Note :
Most acids are resistant to gold, but it does dissolve in aqua regia (a combination of nitric and hydrochloric acids), forming a soluble tetrachlorocuprate anion. Nitric acid, which dissolves silver and base metals, is insoluble in gold, a feature that has long been used to refine gold and certify the existence of gold in metallic compounds, giving origin to the name acid test.