1、
Carbon is C, phosphorus is P, and the symbol of lead is Pb.
Symbol w of copper, copper, calcium, calcium and tungsten.
Symbols of hydrogen, sulfur and silicon.
Gold Au, magnesium symbol Mg.
Symbols of sodium, neon, neon and mercury.
Boron is the symbol Fe of boron, barium and iron.
Symbols Sn for zinc, zinc, manganese, manganese and tin.
Potassium is k, iodine is I, and the symbol of fluorine is F.
Oxygen is O, nitrogen is N, and the symbol of bromine is Br.
The symbol Sb stands for aluminum, aluminum, chlorine, chlorine and.
2、
The first letter should be uppercase followed by lowercase letters.
Compare carbon, copper, nitrogen, phosphorus and sulfur;
Silicon, silicon and oxygen are O, Al and Pb;
Barium, barium and tungsten, and silver is silver, zinc and zinc;
I is iodine, k is potassium, Br is bromine, h is hydrogen and u is uranium;
Iron, iron, sodium, magnesium, calcium, calcium;
Mercury, mercury, gold, tin, tin, antimony, antimony;
Symbols of chlorine, cobalt and elements should be remembered.
Extended data:
Classification of chemical elements: metal elements: except samarium, except mercury; Non-chemical metal elements: except rolling chips, stones and gases, they refer to the state of their simple substances under normal conditions; Rare gas element: gas.
Writing of chemical element symbols: one big and two small principles: Fe, Cu, Mg, Cl, H, etc.
The meaning of chemical element symbol: indicates an element (species): indicates an atom (particle) of this element: (If you know an element, you can also find its relative atomic mass).
References:
Baidu Encyclopedia-Element Symbol