GENERAL SCIENCE PDF for RAILWAY EXAM GROUP D 2018 || GENERAL SCIENCE for RAILWAY EXAM 2018

GENERAL SCIENCE PDF for RAILWAY EXAM GROUP D 2018 || GENERAL SCIENCE for RAILWAY EXAM 2018 1.Fe has 26 protons in its nucleus. What are the number of electrons in Fe^(2+) (II) ion? Fe के न्यूक्लियस में 26 प्रोटॉन हैं. Fe 2 (2+) (II) आयन में इलेक्ट्रॉनों की संख्या क्या है? (a) 24 (b) 26 […]