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S-1:- Long form of periodic table comple...

S-1:- Long form of periodic table completely helps in predicting the oxidation state of elements.
S-2:- Metallic and covalent radii of potassium are 203pm and 230pm respectivley.
S-3:- The following set of elements does not represent the correct order of electron affinity values `C lt Si gt P gt N`.
S-4:- Formation of `Se^(2-)` and `Ar^(-)`, both require the absorption of energy.

A

FFFT

B

TTFT

C

TTTF

D

TTTT

Text Solution

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The correct Answer is:
A
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In the long form of the periodic table the valence shell electronic configuration of 5s^(2)5p^(4) corresponds to the element present in:

S-1 : Formation of Mg^(2+) and Al^(3+) , both require the absorption of energy . S-2: The following set of elements represent the correct order of electron affinity values S gt Se gt Te gt O S-3 : The size of the isoelectronic species is affected by electron - electron interaction in the outer orbitals . S-4: Chemistry of the elements depend on the valence shell electron configuration as well as nuclear masses .

If P, Q, R and S are elements of 3rd period of p-block in modern periodic table, among these one element is metal and rest are non-metals and their order of electronegativity is given as: P lt Q lt R lt S Which element is expected to form amphoteric oxide?

Numerous forms of the periodic table have been revised from time to time. A modern verion, which is most convenient and widely used is the long or extended from the periodic table. The aufbau principle (electrons are filled in the progressive order of their increasing energy i.e., by n + l rule) and the electronic configuration of atom provides a theoretical foundation for the periodic classification. The horizontal rows are called periods. There are altogether seven periods. The first period consists of 2 elements. The subsequent periods consist of 8, 8, 18 and 32 elements respectively. The seventh maximum of 32 elements. Elements having similar outer electronic configurations in their atoms are grouped in vertical columns. These are referred to as groups or famillies. According to the recommendation of IUPAC, the groups are numbered 1 to 18 replacing the older notation of groups 0, IA, IIA ..... VIIA, VIII, IB, ...... VII B. Each successive period in the periodic table is associated with the filling up of next higher principal energy level following aufbua sequence. The number of elements in each period is twice the number of atomic orbitals avaliable in the energy level that is being filled. All the elements are classified into four blocks, i.e., s-block, p-block, d-block and f-block depending on the type of atomic orbitals that are being filled with the last electron of the element. Elements a,b,c,d and e have the following electronic configurations. (a) 1s^(2),2s^(2)2p^(1) (b) 1s^(2),2s^(2)2p^)(6),3s^(2)3p^(1) (c) 1s^(2),2s^(2)2p^(6),3s^(2)3p^(1) (d) 1s^(2),2s^(2)2p^(6),3s^(2)3p^(5) (e) 1s^(2), 2s^(2)2p^(6),3s^(2)3p^(5) Which among these will belong to the same group in periodic table?

The electronic configuration of element A, B , and C are [he]2s^(1),[Ne]3s^(1) , and [Ar]4s^(1) , respectively. Which one of the following order is correct for the IE_(1) ("in" kJ mol^(-1)) of A , B, and C ?

The electronic configuration of four elements are given below. Arrange these elements in the correct order of the magnitude of their electron affinity. (i)2s^(2)p^(3)" "(ii)3s^(2)3p^(5)" "(iii)2s^(2)2p^(1)" "(iv)3s^(2)3p^(4) Select the correct answer using the codes given below :

NARAYNA-PERIODIC TABLE -All Questions
  1. Which of the following statements is/are wrong?

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  2. If the same element is forming oxides in different oxidation states th...

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  3. S-1:- Long form of periodic table completely helps in predicting the o...

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  4. S-1:- IE(1) of Sr gt Rb but IE(2) for Rb gt Sr S-2:- The ionic radii...

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  5. S-1:- Na(2)O lt MgO lt ZnO lt P(4)O(10) : acidic property S-2:- Na l...

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  6. What is the DeltaH of the following affinity. Mg(g)+2F(g) rarr Mg((g...

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  7. First and second ionisation energies of magnesium are 5.7 and 15.035eV...

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  8. The electron affinity of chlorine is 3.93v. How much energy in Kcal is...

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  9. the amount of energy released when 10^(6) atoms of iodine in vapour st...

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  10. Which of the following best describes the relationship of electronegat...

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  11. Calculate the effective nuclear charge at the periphery of nitrogen at...

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  12. How many Cl atoms can you ionise in the process Cl rarr Cl^+ + e, by ...

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  13. Which systematic diagram representsthe correct sequence of physical pr...

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  14. Calculate the bond length of C-X bond, if C-C bond length is 1.54 Å, X...

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  15. Which of the following is/are correct statements (s) .

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  16. Which of the following statement(s) is/are true

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  17. Which of the following is/are correct order regarding radius ?

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  18. Choose the correct order .

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  19. Select the correct statement(s)

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  20. Pick out the statement(s) which is ( are ) not true about the diagonal...

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