Question

part a
what is the correct number of protons, neutrons, and electrons for isotope b?
a 6p⁺,6n⁰,6e⁻
b 6p⁺,7n⁰,6e⁻
c 6p⁺,6n⁰,7e⁻
d 7p⁺,6n⁰,6e⁻
part b
all of the models of carbon shown are isotopes of carbon. what subatomic particle is responsible for making all these different isotopes of carbon?
a proton

Explanation:

Step1: Recall isotope definition

Isotopes of an element have the same number of protons and electrons (as the element is neutral, number of protons = number of electrons), but different number of neutrons. Carbon has an atomic number of 6, so number of protons ($p^{+}$) = 6 and number of electrons ($e^{-}$)=6. Different carbon - isotopes vary in neutron number.

Step2: Analyze options for Part A

For carbon isotopes, the number of protons is always 6. Option A has 6 protons, 6 neutrons and 6 electrons. Option B has 6 protons, 7 neutrons and 6 electrons. Option C has 6 protons, 6 neutrons and 7 electrons (not neutral as protons $
eq$ electrons). Option D has 7 protons (not carbon as carbon has atomic number 6). So for Part A, the answer is B as it represents a carbon - isotope with correct proton, neutron and electron numbers for a neutral atom.

Step3: Recall what makes isotopes different

Isotopes of an element are different due to the number of neutrons. Protons define the element (atomic number), electrons balance the charge in a neutral atom, and neutrons vary among isotopes.

Answer:

Part A: B. $6p^{+},7n^{0},6e^{-}$
Part B: Neutron