question_subject:
Maths
question_exam:
NDA-I
stats:
0,32,12,32,7,4,1
keywords:
{'isotopes': [0, 0, 3, 6], 'same atomic number': [0, 0, 0, 1], 'different mass numbers': [0, 0, 0, 2], 'neutrons': [0, 0, 1, 1], 'radioactive decay': [0, 0, 0, 2], 'atoms': [0, 0, 0, 2], 'protons': [0, 0, 0, 1], 'same number': [0, 0, 1, 9]}