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Screening constant depends upon A) Num...

Screening constant depends upon
A) Number of inner shells
B) Number of electrons in inner shells

A

A only

B

B only

C

Both A and B

D

Neither A nor B

Text Solution

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The correct Answer is:
C
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The maximum number of electrons present in K shell are

What is maximum number of electrons present in M-shell?

If the atomic number of an element is 36, the number of electrons present in the M-shell is

Is there any rule to find the maximum number of electrons in any shell ?

In an atom the number of electrons in M - shell is equal to the number of electrons in the K and L - shell . Answer the question. Explanation : 1) Number of electrons in K-shell (1 s^(2)) = 2 Number of electrons in L-shell (2s^(2) sp^(6)) = 8 Total number of electrons in k & L shells = 10 2) Given that number of electrons in M-shell is equal to number of electrons in K& L- shells 3) Hence number of electrons in M-shell (3s^(2) 3p^(6) 3d^(2)) = 10 4) But , we know that before filling of 3d orbital 4s should be filled (4s^(2)) 5) So , electronic configuration is 1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(6) 4s^(2) 3d^(2) How many electrons are there in its outermost shell ?

In an atom the number of electrons in M - shell is equal to the number of electrons in the K and L - shell . Answer the question. Explanation : 1) Number of electrons in K-shell (1 s^(2)) = 2 Number of electrons in L-shell (2s^(2) sp^(6)) = 8 Total number of electrons in k & L shells = 10 2) Given that number of electrons in M-shell is equal to number of electrons in K& L- shells 3) Hence number of electrons in M-shell (3s^(2) 3p^(6) 3d^(2)) = 10 4) But , we know that before filling of 3d orbital 4s should be filled (4s^(2)) 5) So , electronic configuration is 1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(6) 4s^(2) 3d^(2) What is the atomic number of element ?

In an atom the number of electrons in M - shell is equal to the number of electrons in the K and L - shell . Answer the question. Explanation : 1) Number of electrons in K-shell (1 s^(2)) = 2 Number of electrons in L-shell (2s^(2) sp^(6)) = 8 Total number of electrons in k & L shells = 10 2) Given that number of electrons in M-shell is equal to number of electrons in K& L- shells 3) Hence number of electrons in M-shell (3s^(2) 3p^(6) 3d^(2)) = 10 4) But , we know that before filling of 3d orbital 4s should be filled (4s^(2)) 5) So , electronic configuration is 1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(6) 4s^(2) 3d^(2) Which is the outermost cell ?

Which of the following have the same number of electrons in outermost shell?

The following species has the lowest number of electrons in the valence shell

What is the criteria to decide number of electrons in a shell?

AAKASH SERIES-PERIODIC TABLE-OBJECTIVE EXERCISE -3
  1. The IUPAC name of ""(104)Rf is

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  2. The IUPAC name of ""(107)Bh is

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  3. Screening constant depends upon A) Number of inner shells B) Numbe...

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  4. Screening constant of Be is 2.05 and that of B is

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  5. Write any two properties which are decreased from top to bott...

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  6. Screening by inner electrons will be more effective in

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  7. Correct order of first ionisation potentials

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  8. In a period from left to right A) nuclear charge increases B) eff...

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  9. Relation between oxidation numbers and electronegativity is given by

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  10. Screening effect influences A) atomic radius B) Ionisation enthal...

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  11. {0} is a set contains the element……..

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  12. Number of unpaired electrons in Gd(Z =64) and the net electrons spin a...

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  13. For the process X((g)) + e^(-) rarr X((g))^(-), Delta H =x and X(g)^...

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  14. Some statements are given regarding nature of oxides (i) In second ...

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  15. When an electron adds on F atom, It becomes

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  16. On going down a main subgroup in the periodic table (example Li to Cs ...

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  17. Identify the correct statement

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  18. Identify the correct order in which the ionic radius of the following ...

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  19. The atomic radius decreases in a period due to

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  20. Among the following, the number of elements showing only one non-zero ...

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