The electron configuration Ar4s²3d⁷ corresponds to the element cobalt (Co), which has an atomic number of 27. In this configuration, "Ar" represents the noble gas argon, which accounts for the first 18 electrons. The 4s² indicates two electrons in the 4s subshell and the 3d⁷ indicates seven electrons in the 3d subshell, totaling 27 electrons for cobalt.
"Ci" isn't a symbol on the periodic table.
Carbon is an element and it is represented by the letter C.
At stands for astatine which is in group 7 of the periodic table.
Phosphorous is represented by P and Krypton is represented by Kr.
Magnesium is an element. It is represented on the periodic table with the symbol Mg and has an atomic number of 12.
The element represented by Au is gold.
Each element is represented by a one or two-letter symbol.
Each element is represented by a one or two-letter symbol.
element
Silver
Strontium
Selenium
The atomic number of an element is the number of protons in its nucleus. It is represented by the whole number above the element's symbol in the periodic table.
Gold is an element on the periodic table represented by the symbol Au. Iron is a different element represented by the symbol Fe, and sulfur is yet another element represented by the symbol S. Each element has distinct properties and characteristics.
"Ci" isn't a symbol on the periodic table.
Carbon is an element and it is represented by the letter C.
the atomic number of an element