Identify Elements in the Same Period | Periodic Table MCQ ⚛️

Periodic Table Challenge! ⚛️ Question: Which of the given elements A, B, C, D and E with atomic number 2, 3, 7, 10 and 30 respectively belong to the same period? (a) A, B, C (b) B, C, D (c) A, D, E (d) B, D, E Do you know the trick? Comment your answer! 👇 ✅ Correct Answer: (b) B, C, D. Reason: Elements with Atomic Numbers 3, 7, and 10 all have 2 electron shells (K, L), placing them in the 2nd Period. A (Z=2) is Period 1. E (Z=30) is Period 4. #PeriodicTable #Class10Science #ChemistryShorts #AtomicNumber #BoardExam2025 #ChemistryQuiz #ScienceMCQ #NCERT Periodic Classification of Elements, Class 10 Science Chapter 5, How to find period and group, Electronic Configuration, Atomic Number, Modern Periodic Table, Chemistry MCQ, CBSE Class 10, Science Quiz, Elements and Periods.