There is no element with symbol he. In chemistry it is critical that upper case and lower case letter are used properly.
Otherwise, you could not differentiate between CO = carbon monoxide, and Co = cobalt. He stands for helium.
The chemical symbol of a chemical element is formed from one or two letters, extracted from the name of this element.
The chemical element with 33 protons is: arsenic (As).
Nitrogen
The Latin name of the element was the model.
Mn is the chemical symbol (not reaction) for the element manganese.
cupprum
The chemical symbol of a chemical element is formed from one or two letters, extracted from the name of this element.
The symbol if the chemical element Scandium are 1,2 or letter international agreed code for the chemical element, which usually derived from the name of the element.
The element with the chemical symbol Ag is silver.
This is the chemical symbol of a chemical element.
This chemical element is mercury (Hg).
In the case of each chemical element the name is found.
The chemical element with 33 protons is: arsenic (As).
Helium.
Helium.
· Zinc (chemical element #30) · Zirconium (chemical element #40)
Lithium is a chemical element and it is simply called Lithium, its symbol is Li.