Beta Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>EXERCISE-I (Conceptual Questions)>Q 152

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In $6^{th}$ period of the modern periodic table, electronic energy levels are in the order :-

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Important Questions on Structure of Atom

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Beta Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>EXERCISE-I (Conceptual Questions)>Q 153

General electronic configuration of outermost and penultimate shell of an atom is

(n - 1) s^{2} (n - 1) p^{6} (n - 1) d^{x} {ns}^{2} .

If

n = 4

and

x = 5,

the number of proton in the nucleus is:

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Beta Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>EXERCISE-I (Conceptual Questions)>Q 157

In a homonuclear molecule, which of the following set of orbitals is degenerated?

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Beta Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>EXERCISE-II (Previous Year Questions)>Q 1

The electronic configurations of

Eu

(Atomic No

63

),

Gd

(Atomic No

64

) and

Tb

(Atomic No

65

) are:

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Beta Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>EXERCISE-II (Previous Year Questions)>Q 2

If uncertainty in position and momentum are equal, then uncertainty in velocity is]:

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Beta Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>EXERCISE-II (Previous Year Questions)>Q 3

The measurement of the electron position if associated with an uncertainty in momentum, which is equal to

1 \times 10^{- 18} {gcms}^{- 1}

. The uncertainty in electron velocity is, (mass of an electron is

9 \times 10^{- 28} g

)

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Beta Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>EXERCISE-II (Previous Year Questions)>Q 4

Maximum number of electrons in a subshell of an atom is determined by the following

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Beta Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>EXERCISE-II (Previous Year Questions)>Q 5

Which of the following is not permissible arrangement of electrons in an atom?

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Beta Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>EXERCISE-II (Previous Year Questions)>Q 6

A

0.66 kg

ball is moving with a speed of

100 m / s .

The associated warelength will be

(h = 6.6 \times 10^{- 34} J s)