Question

please solve this problem ​

Answer 1

1. In the picture
2. The charge on 1 electron is 1.6× 10^-19 C.
3. Electrons have a mass of approximately 0 amu.
4. Neutron is neutral with no net charge.
5. Mass of neutron is 1 u.
6. no. of protons is 11. Since an atom is neutral, therefore, no. of protons = no. of electrons. So, no of electrons = 11.
7. The atomic no of the given atom is 9
8. The atomic mass of the atom is 19u.
9. atomic no = no. of protons = 15
10. atomic no. = no of protons = 20. no. of electrons = no. of protons = 20
11. Since, Chlorine has atomic no = 17 and it's atomic mass is 35. no. of Neutron = atomic mass - no of protons = 35-17 = 18.

Answer 2

Answer:

its not clear..........