Question

1) What is isotopes?
2) What is Daltons theory?​

Answer 1

Answer:

Each of two or more forms of the same element that contain equal no. of protons but different no.of neutrons in their nuclei,and hence differ in relatives atomic mas

Answer 2

Answer:

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Explanation:

Isotopes.

each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element.

"some elements have only one stable isotope