Match List-I with List-II
| List-I | List-II | ||
|---|---|---|---|
| (Elements) | (Atomic Number) | ||
| (A) | Neon | (I) | 16 |
| (B) | Aluminium | (II) | 10 |
| (C) | Sulphur | (III) | 18 |
| (D) | Argon | (IV) | 13 |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → (A) - (II), (B) - (IV), (C) - (I), (D) - (III)
The atomic number of an element is the number of protons in the nucleus of its atom; it fixes the element’s place in the periodic table.
(A) Neon — this matches (II) 10. Neon is the noble gas at the end of the second period (2, 8 electrons).
(B) Aluminium — this matches (IV) 13. It is the third element of the third period, with electronic configuration 2, 8, 3.
(C) Sulphur — this matches (I) 16. Its configuration is 2, 8, 6, so it has six valence electrons.
(D) Argon — this matches (III) 18. Argon is the noble gas at the end of the third period (2, 8, 8).