免费版元素周期表规律(Freeversionelementperiodictable rule) Passthevariationofelementsintheperiodictableofelements andtheircompounds 1atomicradius (1)inthefirstcycle,otherperiodicelements(exceptinert elements)theatomicradiusdecreaseswithincreasingatomic number; (2)theelementsofthesamefamilyfromtoptobottom,with elec...
Herein we study how the Hyperbolic Law acts in the Periodic Table of Elements, in each of the four quadrants of the plane "molecular mass X — contents of element Y". It is shown that the symmetry of the equation Y = K/X is permitted only in the 1st and 2nd quadrants. The negative...
Beginning in the late seventeenth century with the work of Robert Boyle(罗伯特•波义耳,英国化学家,物 理学家), who proposed the presently accepted concept of an element, numerous investigations produced a considerable knowledge of the properties of elements and their compounds. In 1869, D. ...
Three Packets of Minerals of the Periodic Table of Chemical Elements and Chemical CompoundsPhysics - General PhysicsThe concepts of alpha- and beta-packets of the periodic table of chemical elements and chemical compounds are defined. The first of the 47 minerals alpha-packets is composed. In it...
It is shown that the symmetry of the equation Y = K/X is permitted only in the 1st and 2nd quadrants. The negative numerical values on the X-axis, and also K 0, testify that the 2nd quadrant should contain the elements and compounds of anti-substances....
<a href="https://EnvironmentalChemistry.com/yogi/periodic/">echo Periodic Table of Elements (EnvironmentalChemistry.com)</a>- Our periodic table provides comprehensive data on the chemical elements including scores of properties, element names in many languages, chemical compounds, most known nuclides...
totally changed the way chemists viewed their discipline. Now each chemical element had its number and fixed position in the table, and from this it became possible to predict its behaviour: how it would react with other elements, what kind of compounds it would form, and what sort of physic...
PURPOSE: atom periodicity learning aid is provided as enhancing learning interest and stores effect by memory cycle table atom by playing game. ;CONSTITUTI... MJ Lee,WH Lee 被引量: 0发表: 2013年 Development of Guided Inquiry-Based Worksheet as Teaching Materials on Elements, Compounds, and Per...
Only elements go onto the periodic table, andsteel is an alloy, not an element.Steelis made from multiple elements. Its basic formula includesiron(Fe) with trace amounts of carbon (C). Different types of steel made add other elements to enhance properties. For example, chromium (Cr) may ...
The formula can be used in calculating thirty quantitives or more of element and its compounds in the same tribe of the element periodic table. 将同系因子1/N用于元素周期表,以N为周期序数,P作为各元素或其化合物的性能,利用公式P=a+b/N对周期表中各元素及化合物30多种性能进行拟合,得到了良好的...