Atoms of
Cl contain ________ protons and ________ neutrons.

Question

Atoms of 
Cl contain ________ protons and ________ neutrons.

Quizplus · Accepted Answer

The atomic number of chlorine (Cl) is 17, which also equals the number of protons in its nucleus. The given notation for the isotope (11ea7e2f_dc7e_2a4d_ab1f_b3bf83dc6d84_TB4941_11Cl) suggests that it has a mass number of 35 (sum of protons and neutrons). Therefore, the number of neutrons can be calculated by subtracting the atomic number from the mass number, which gives 18 in this case. Hence, the correct answer is option B, which states that the atom contains 17 protons and 18 neutrons.

Atoms of Cl Contain ________ Protons and ________ Neutrons

Atoms of Cl Contain Protons and Neutrons