Question

Exercises
1. Choose the correct option:
(1)
Isotopes have different:
(a) electrons (b) protons
(c) neutrons (d) both electrons and neutrons
Who first included electrons in his atomic model?
(a) Dalton
(b) Thomson
(c) Rutherford (d) Bohr
Which of the following statements is true for K atom
(a) The atom has 39 electrons (b) The atom has 39 protons
(c) The atom has 19 protons (d) None of the above
pls send me the answers​

Answer 1

Answer:

a) protons

b) Dalton

c) the atom....19 elec...

Answer 2

Explanation:

1 (b) proton

2 c) Rutherford

4