Introduction to the chemical element lead 10 in English

The code for zinc is 30 and the code for lead is 82. Zinc is a chemical element, its chemical symbol is Zn, its atomic number is 30, and it is located in the 4th period, group b in the periodic table of chemical elements. Zinc is a light gray transition metal and is also the fourth"Common"of metal.

In modern industry, zinc is an irreplaceable metal in battery manufacturing and is a very important metal.

Lead is a metallic chemical element with the element symbol PB (Latin plumbum; English name lead), atomic number is 82, atomic weight, is the largest atomic weight of non-radioactive elements. Lead metal is a face-centered cubic crystal.

Zinc is difficult to burn in air and emits a strong white light in oxygen. There is a layer of zinc oxide on the surface of zinc, which emits white smoke when burning, and the main component of white smoke is zinc oxide, which not only blocks zinc combustion, but also refracts the flame color to form a miserable white light. Zinc is easily soluble in acids and easily displaces gold, silver, copper, etc. from solution.

The melting point of the oxide film of zinc is high, but the melting point of metal zinc is very low, so when the zinc sheet is heated on the alcohol lamp, the zinc sheet melts and softens, but does not fall, precisely because of the effect of the oxide film. Zinc is mainly used in the fields of iron and steel, metallurgy, machinery, electrical, chemical, light industry, military and medicine.

The term code name is inaccurate.

1. The element symbols of the two elements are:

Zinc: Zn (for the element zinc).

Lead: PB (for lead element).

2. The chemical formulas of the two metal elements are the same as the element symbols.

Zinc: Zn (stands for zinc element, which can also represent a zinc atom) Lead: Pb (stands for lead element, which can also represent a lead atom).

The top 20 elements of the periodic table of chemical elements, mercury and lead are as follows:

hydroger ,helium ,lithium ,beryllium ,boron ,carbon ,nitrogen ,oxygen ,fluorine ,neon ,sodium ,magnesium ,aluminium ,silicon ,phosphorus ,sulfur ,chlorine ,argon ,potassium ,calcium , mercury, (hydrargyrum is "Latin") leadplumbum is "Latin").

Upstairs mercury and lead wrong birds

Mercury

Lead lead

Mercury is Hg, lead is Pb, and you can see that wcjin007 is right at a glance.

Because the names of chemical elements are in Latin, the nouns and formulas of scientific fields such as medicine and biology are almost always used! Latin is common in the Western world, while English is not!

plumbum

This is the name of the lead element.

Some of the chemical elements you are talking about have two "English names", which are actually chemical elementsEnglish and Latin name[The "azote" (nitrogen) you listed should be from Spanish. The internationally accepted element symbol is an abbreviation of the Latin name.

Those metals that have been discovered by humans for a long time, such as gold, silver, tin, mercury, copper, iron, lead, etc., will naturally have a big difference between their English and Latin names. For example, silver is silver in English, argentum in Latin, and the symbol ag.

Although sodium and potassium have only been discovered in modern times, their English and Latin names are also distinct. This is because the name sodium comes from "soda", which is soda in English and natrium in Latin; The name potassium comes from "pochaline", which is potash in English and kalium in Latin.

Some elements, such as tungsten, have different English names and Latin names, so there are significant differences. The original meaning of tungsten is "heavy stone" (the main component is calcium tungstate), and the Latin name wolframium comes from the German wolframite (written wolfram in German).

In addition, some elements, such as hydrogen, nitrogen, oxygen, silicon, phosphorus, etc., have their English names by removing or rewriting the suffix of Latin names. For example, nitrogen is called nitrogen, and the Latin name is nitrogenium; The English name of silicon is silicon, and the Latin name is silicium.

Of course, most of the elements in the periodic table have the same English and Latin names.

Look at the English version of the periodic table of chemical elements, which is written in accordance with international standards.

The chemical elements Pb is lead, AS is arsenic, and Cd is cadmium.

Lead, the chemical symbol is PB (Latin plumbum; English lead), atomic number is 82. Lead is a weak metal, soft and malleable, toxic, and also a heavy metal.

Arsenic, the element symbol AS, commonly known as arsenic, is a metal-like element, located in the periodic table of chemical elements in the 4th period, group va, atomic number 33, elemental matter in the form of three allotropic forms of gray arsenic, black arsenic and yellow arsenic.

Cadmium, the element symbol CD, English Cadmium, derived from Kadmia, means "earth", it is an excellent metal that absorbs neutrons, made of rods can slow down the rate of nuclear chain reaction in the atomic reactor, and is quite useful in zinc-cadmium batteries.

Lead, arsenic, cadmium are among the heavy metals.

1 hydrogen h [.]'haidrid n]2 helium helium he ['hi:li m]3 lithium li ['Li i M]4 beryllium be[be'rili m]5 boron b ['b :r n]6 carbon c ['kɑrb n]7 nitrogen n ['naitr d n]8 oxygen o ['KSID N]9 Fluorine Fluorine F['fluəri:

n]10 neon ne ['Ni: n]11 sodium Na ['S udi m]12 magnesium mg [m g'Ni:zi m]13 aluminium aluminium al [ lju'mini m]14 silicon si ['silik n]15 phosphorus p ['f sf r s]16 sulfur sulfur s ['S lf ]17 chlorine Cl ['kləuri:

n]18 argon argon ar ['ɑ:g n]19 potassium potassium k [p't si m]20 calcium ca ['kælsiəm]

Why do you need to memorize this for the TOEFL test, it's basically useless. Even if you don't know the chemical elements, you can do it. It is recommended that you practice speaking, memorize composition, and listen and read mainly by the amount of questions you usually do.