Home/ Questions/Q 459593
In Process
Batra Sahab
  • 1
Poll
Asked: 2025-02-01T10:32:30+00:00 In:

An atom with 3 protons and 4 neutrons will have a valency of

  • 1

Poll Results

0%(a) 3
0% (b) 7
100%(c) 1 ( 1 voter )
0%(d) 4
Based On 1 Vote

Participate in Poll, Choose Your Answer.

The atom with 3 protons is lithium (Li) because its atomic number is 3. The electronic configuration of lithium is 2,1, meaning it has one valence electron in its outermost shell.
Valency is the number of electrons an atom loses, gains, or shares to achieve a stable configuration. Since lithium loses one electron to achieve a stable configuration (like helium), its valency is 1.
So, the correct answer is:(c) 1.
Class 9th Science NCERT MCQ Questions
NCERT Books MCQ Questions Session 2024-2025.

class 9thmcqscience
Share

    1 Answer

    1. (c) An atom with 3 protons and 4 neutrons (lithium) will have a valency of 1.

      https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-4/

      • 0
    Leave an answer

    Leave an answer

    Browse