In 1829, J.W. Dobereiner organized the aspects into teams of triads, 3 elements with similar chemical properties. In addition, that noticed that one aspect in every triad had properties v values the to be midway in between the other 2 elements. However, this organization method had one flaw: it couldn"t accept newly discovered elements.

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Which of these sets of aspects have similar physical and also chemical properties?a. Oxygen, nitrogen, carbon, boronb. Strontium, magnesium, calcium, berylliumc. Nitrogen, neon, nickel, niobium
Lithium and potassium room both elements comparable to those the sodium, due to the fact that they space both in the same duration as sodium.
The regular table consists of much information. It systematically organizes the facets in a fashion that presents the similarities among elements in the exact same families. Moreover, the routine table offers for routine trends that deserve to be visualized as one moves across rows and also down columns. The routine table likewise contains the chemical signs of every elements, the atomic and mass numbers of each element, and sometimes the way electrons are distributed in the power levels of the atoms. Regular tables likewise usually usage some system to show the state of matter displayed by each aspect at standard conditions. Lastly, the regular table contains a line that separates nonmetals indigenous metals and also shows the metalloids in between the 2 main groups of elements. Sometimes, periodic tables also use shade identification to differentiate the different groups that atoms.
Elements have the right to be categorized together noble gases, representative elements, change metals, or inner shift metals based upon their electron configurations.
The facets potassium and sodium have similar chemical properties due to the fact that they have actually the same number of valence electron (1).
Is this electron construction a representative element, shift metal, or noble gas.
The electron construction is that of Krypton, plainly a noble gas.

See more: Ground State Electron Configuration Of Iron Element Configuration


Which that the following are shift metals: Cu, Sr, Cd, Au, Al, Ge, Co?
Transition steels belong come the d block. Native the perform of facets given, we check out that Cu, Cd, Au, and also Co space all change elements, since they are in the d block.
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