Q: For Aluminium (Al) (atomic number: 13, mass number: 27), which one among the following statements is NOT correct?
(a)Number of electrons present in Al is 13
(b)Number of protons present in Al is 13
(c)Number of neutrons present in Al is 14
(d)The valency of Al is 2
Correct Answer: (d)
The correct answer is (d): Al की संयोजकता 2 है. Subject: Science & Technology | Sub-topic: General