Question

question 3 (mandatory) (1 point) saved isotopes have the same a) atomic mass. b) number of protons but a different number of neutrons. c) total number of protons and neutrons. d) number of neutrons but a different number of protons. e) number of protons but different numbers of electrons. question 4 (mandatory) (1 point) the theoretical description of an electron as both a wave and a particle was developed by ________ a) einstein.

Explanation:

Isotopes are defined as atoms of the same element with the same number of protons but different numbers of neutrons. The wave - particle duality of the electron was proposed by Louis de Broglie.

Answer:

Question 3: B. number of protons but a different number of neutrons
Question 4: Not provided in options (should be de Broglie)