Question

Properties of protons in an atom, [ Choose the incorrect statement ]

Number of atoms present are the atomic number of an element.

Mass of a proton is equal. to the mass of an atom of hydrogen.

Proton were discovered as the stream of cathode ray.

Proton of isotopes are also having same numbers
Good morning have a blessed day ahead​

Answer 1

Answer:

2nd statement

Explanation:

Answer 2

Answer:

oa hello yaar kaisi ho , or mai yaad hu ya bhul jyi ? sayad bhul hii jyi hoji hai na