This depends on the type of compound. For metallic compounds, the metal comes first. For nonmetallic inorganic compounds the more electropositive element comes first. For MOST organic compounds, carbon comes first.
The chemical symbol for silver, Ag, comes from its Latin name "argentum." The symbol Ag is derived from the first two letters of argentum.
Each atom has its own elemental 'symbol' or 'formula', there are more than 92 elements: from number 1. Hydrogen (H) to number 92. Uranium (U). Examples: O for oxygen, C for carbon, N for nitrogen atoms.
It's from the neo-latin name for Potassium, Kalium.
The chemical symbol for helium is 'He'. The name 'helium' is from the Classical Greek 'Helios' , which means the Sun. Helium gas was first detected in the spectra from the Sun , and it is a fusion of hydrogen ions, & neutrons to form helium gas. H2 + 2neutrons^(o) = He or D2= He NB 'D' being deuterium ( heavy hydrogen ) , which has a mass of '2' . consisting of one proton and one neutron .
The first figure in a properly written chemical symbol represents the atomic number of the element, which is the number of protons in the nucleus of an atom. The atomic number defines the element's identity and determines its unique chemical properties.
Sodium
Not formula, but chemical symbol is Pu. No, he means formula (eg: Table Salt/ Halite - NaCl)
CHO is the element symbol if that's what you mean
The symbol (He) comes from the first two letters of the word Helium
The chemical symbol for silver, Ag, comes from its Latin name "argentum." The symbol Ag is derived from the first two letters of argentum.
The chemical symbol of a chemical element is derived fom the his name: the first letter or the first two letters.
Each atom has its own elemental 'symbol' or 'formula', there are more than 92 elements: from number 1. Hydrogen (H) to number 92. Uranium (U). Examples: O for oxygen, C for carbon, N for nitrogen atoms.
It's from the neo-latin name for Potassium, Kalium.
The chemical symbol for helium is 'He'. The name 'helium' is from the Classical Greek 'Helios' , which means the Sun. Helium gas was first detected in the spectra from the Sun , and it is a fusion of hydrogen ions, & neutrons to form helium gas. H2 + 2neutrons^(o) = He or D2= He NB 'D' being deuterium ( heavy hydrogen ) , which has a mass of '2' . consisting of one proton and one neutron .
Lithium got its chemical symbol from the first two letters of its name.
The first figure in a properly written chemical symbol represents the atomic number of the element, which is the number of protons in the nucleus of an atom. The atomic number defines the element's identity and determines its unique chemical properties.
The symbol for xenon is Xe. It is obtained from the first two letters of the element.