Atomic Structure [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Chemistry]: Questions 1 - 6 of 128
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Question 1
Question MCQ▾
what will be the uncertainty in velocity of a cricket ball if its uncertainty in position is of order of 1Å.
(If mass = 0.15kg)
Choices
Choice (4) | Response | |
---|---|---|
a. | 2.22 m/s | |
b. | 2.22 m/s | |
c. | 3.51 m/s | |
d. | 3.51 m/s |
Question 2
Question MCQ▾
If the set of quantum number of an element is n = 4, l = 0, m = 0 and s =+ . Identify that element.
Choices
Choice (4) | Response | |
---|---|---|
a. | Titanium | |
b. | Sodium | |
c. | Potassium | |
d. | Scandium |
Question 3
Question MCQ▾
Correct set of four quantum numbers for the outermost electron of rubidium (Z = 37) is -
Choices
Choice (4) | Response | |
---|---|---|
a. | 5,1, 0, | |
b. | 5,1, 1, | |
c. | 5,0, 0, | |
d. | 6,0, 0, |
Question 4
Question MCQ▾
The maximum number of atomic orbitals associated with a principal quantum number 3 is
Choices
Choice (4) | Response | |
---|---|---|
a. | 25 | |
b. | 12 | |
c. | 16 | |
d. | 9 |
Question 5
Question MCQ▾
For a given electron configuration, the term with maximum multiplicity has the lowest energy. This rule was proposed by-
Choices
Choice (4) | Response | |
---|---|---|
a. | Pauli | |
b. | Hund | |
c. | Aufbau | |
d. | Dalton |
Question 6
Question MCQ▾
The wave-mechanical model of atom is based upon -
Choices
Choice (4) | Response | |
---|---|---|
a. | De Broglie concept of dual character of matter | |
b. | Schrodinger wave equation | |
c. | Heisenberg՚s uncertainty principle | |
d. | All a., b. and c. are correct |