Carbon has three isotopes: ¹² C, ¹³ C, and ¹⁴ C. If the atomic number of carbon is 6, t hese isotopes each have _____, _____, and _____ neutrons, respectively. A) 6; 7; 8 B) 6; 7; 8.0 C) 12; 13; 14 D) 12.0; 13; 14 E) 24; 25; 26

Question

Quizplus · Accepted Answer

The number of neutrons in an isotope is found by subtracting the atomic number (number of protons) from the mass number. For carbon (atomic number 6), the isotopes have 6, 7, and 8 neutrons respectively (12-6=6, 13-6=7, 14-6=8).

Carbon Has Three Isotopes: 12 C, 13

Carbon Has Three Isotopes: ¹² C, ¹³