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The answers to both of these questions come from spectroscopy -- the study of how materials absorb or emit particular wavelengths of light.
When the lines in the spectrum of atoms were first connected with the electron structure, scientists did not know whether or not the highest energy lines they were seeing were from the innermost electron shell, or whether there were other shells with more tightly bound electrons. So they arbitrarily chose a letter from near the middle of the alphabet that would not be confused with a letter doing any other job. K was chosen. L, M, N, etc. then followed for the next shells moving outward, and scientists soon discovered that there was no J.
In the spectra of atomic elements, there were fairly obvious "series" of lines with different characteristic appearances, and a pattern to their wavelengths -- lines in a series getting rapidly closer together towards shorter wavelengths.
The characteristic appearances of the lines were described as "sharp", "principal", "diffuse", and "faint". The initials s,p,d,f were taken over to describe the subshells in the electron structure which produced these lines.
What else can I help you with?
Where is the p and the s block?
The elements are classified in 'blocks' according the sub-energy level that the elements have their electrons with highest energy. The block of an element can be determined by its electron configuration.Na - [Ne] 3s1 is an 's-block' element.Cl - [Ne] 3s2 3p5 is a 'p-block' element.Cr - [Ar] 4s1 3d5 is a 'd-block' element as 3d bears higher energy than 4s.The block of an element is determined by the electron configuration. The s block is in the 1st and 2nd groups of the periodic table. The elements in the groups 13,14,15,16,17,18 belongs to the p group.
What is taking place with the elements in the s p d p and f blocks?
They relate to the sub orbital type, or the highest energy orbitals that are occupied in a given element that falls under the subsequent block of the periodic table. Plato: Its not D. none of the above
What is s block in the periodic table?
The s-block in the periodic table consists of groups 1 and 2, which include elements that have their outermost electrons in the s orbital. These elements are typically metals and have similar chemical properties due to the configuration of their outermost electrons. The s-block elements are known for being reactive, easily forming positive ions by losing electrons.
What is the total number of sub-shells for elements in period 5 of the periodic table?
Elements in period 5 of the periodic table have a total of four sub-shells: s, p, d, and f. The electron configuration of these elements includes the 5s, 5p, and 4d sub-shells, with the 4f sub-shell being filled in the subsequent period (period 6). Therefore, the total number of sub-shells available for elements in period 5 is four.
Why magnesium belongs to s block?
Valent electrons are in the s sub shell. So it belongs to s block.
Where is the p and the s block?
The elements are classified in 'blocks' according the sub-energy level that the elements have their electrons with highest energy. The block of an element can be determined by its electron configuration.Na - [Ne] 3s1 is an 's-block' element.Cl - [Ne] 3s2 3p5 is a 'p-block' element.Cr - [Ar] 4s1 3d5 is a 'd-block' element as 3d bears higher energy than 4s.The block of an element is determined by the electron configuration. The s block is in the 1st and 2nd groups of the periodic table. The elements in the groups 13,14,15,16,17,18 belongs to the p group.
What elements belong to the p block?
Elements which have their valency electrons in the p sub shell belong to this. Elements of groups 13,14,15,16,17,18 are in p block.
How many subdivisions in tripura?
Tripura State has 17 Subdivisions and 40 Development Blocks.
What is taking place with the elements in the s p d p and f blocks?
They relate to the sub orbital type, or the highest energy orbitals that are occupied in a given element that falls under the subsequent block of the periodic table. Plato: Its not D. none of the above
What is the name given to the d-sub level section of elements on the periodic table?
The d-sub level section of elements on the periodic table is often referred to as the "transition metals." These elements are located in groups 3 to 12 and have partially filled d orbitals in their electron configurations.
Why d block element are called transition element?
d block elements, transition metals, transition elements are synonyms.The definition of d block after the IUPAC recommendation is "an element whose atom has a partially filled d sub-shell, or which can give rise to cations with an incomplete dsub-shell".
Is any element there without p subshell in valence shell in p block elements?
He does not have a p sub-shell in the valent shell. Because He has the noble gas configuration it is included in the p block.
What element has 3 electrons and P sub level?
These would be p block elements in group 5 (XV)N, P, As, Sb, Bi
What is s block in the periodic table?
The s-block in the periodic table consists of groups 1 and 2, which include elements that have their outermost electrons in the s orbital. These elements are typically metals and have similar chemical properties due to the configuration of their outermost electrons. The s-block elements are known for being reactive, easily forming positive ions by losing electrons.
Why are they 14 different f-block elements?
The d level has 5 sub-levels of orbitals and each carries two electrons so 5 x 2 = 10 maximum electrons. The f level has 7 sub-levels of orbitals and can thus hold 14 electrons total. So each electron added would be another element. Hence, the f-block has 14 different elements.
How do you frame a house on blocks?
By building a pedimented sub-floor first.
What did the sub arctic people live in?
Igloo - Made from blocks of ice.
