Question

एक तत्व के समस्थानिक ओं में अलग अलग होता है। 1.इलेक्टान 2.प्रोटान 3. न्यूटारन 4.इलेक्टान और न्यूटारन दोनों​

Answer 1

Answer:

option 3 Neutron

isotopes are the elements having the same atomic no. but different mass no. well mass no. is the sum of no. of protons and no. of neutron since the atomic no remains same i.e. no of proton remains same the atomic particle whose no. is changing is neutron.