What does magnetic quantum number describe ?
- AShape of an orbital
- BSize of an orbital
- CSpin of an electron
- ✓Orientation of an orbital in the given subshell
Answer: D.
View full solution →Question types
Structure of Atom question types
135 questions across 4 question groups — pick any mix to generate a Chemistry paper with step-by-step answer keys.
135
Questions
4
Question groups
5
Question types
01
MCQ
44 Q→02Answer the following in one or two sentences.
27 Q→03Answer the following in brief.
29 Q→04Answer the following questions.
35 Q→Sample Questions
Structure of Atom questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
Which of the following is not hydrogen like species?
- A$\mathrm{He}^{+}$
- B$\mathrm{Be}^{3+}$
- C$\mathrm{Li}^{2+}$
- ✓$\mathrm{He}$
Answer: D.
View full solution →Calculate the radius of first orbit of $\mathrm{Be}^{3+}$
- ✓$13.23 \mathrm{pm}$
- B$52.9 \mathrm{pm}$
- C$17.63 \mathrm{pm}$
- D$26.45 \mathrm{pm}$
Answer: A.
View full solution →What is the number of nucleons present in an atom having 29 electrons and 34 neutrons in it?
- A34
- B5
- ✓63
- D29
Answer: C.
View full solution →
- A(a)-(i),(b)-(ii),(c)-(iv),(d)-(iii)
- B(a)-(ii),(b)-(iii),(c)-(i),(d)-(iv)
- ✓(a)-(iii),(b)-(iv),(c)-(ii),(d) - (i)
- D(a)-(iv),(b)-(i),(c)-(iii),(d) - (ii)
Answer: C.
View full solution →Which atom in $NH _4^{+}$will have formal charge +1 ?
View full solution →Which electrons are involved in the formation of chemical bonds?
Why are atoms held together in chemical compounds?
Which part of an atom was discovered by Ernest Rutherford from the experiment of scattering of α-particles by gold foil?
Which particle was identified by J. J. Thomson in the cathode ray tube experiment?
Define the terms:
i. Isotones
ii. Isoelectronic species
iii. Electronic configuration
i. Isotones
ii. Isoelectronic species
iii. Electronic configuration
Search more atoms, which complete their octet during chemical combinations.
Indicate the number of unpaired electrons in :
$a. Si (Z = 14)$
$b. Cr (Z = 24)$
View full solution →$a. Si (Z = 14)$
$b. Cr (Z = 24)$
Write condensed orbital notation of electonic configuration of the following elements:
a. Lithium (Z = 3)
b. Carbon (Z=6)
c. Oxygen (Z = 8)
d. Silicon (Z = 14)
e. Chlorine (Z = 17)
f. Calcium (Z = 20)
a. Lithium (Z = 3)
b. Carbon (Z=6)
c. Oxygen (Z = 8)
d. Silicon (Z = 14)
e. Chlorine (Z = 17)
f. Calcium (Z = 20)
Write electronic configurations of $Fe, Fe^{2+}, Fe^{3+}$
View full solution →Which molecules are polar?
$H-I, H-O-H, H-Br, Br_2, N_2, I_2, NH_3$
View full solution →$H-I, H-O-H, H-Br, Br_2, N_2, I_2, NH_3$
Lowering of energy takes during bond formation. How does this happen?
Why is $H_2$ stable even though it never satisfies the octet rule?
View full solution →How many electrons will be around $I$ in the compound $IF7$?
View full solution →What does the negative sign of electron energy convey?
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