How many protons (p) and neutrons (n) are in an atom of calcium-46?
A. 20 p, 26 n
B. 20 p, 46 n
C. 26 p, 20 n
D. 46 p, 20 n
Answer:A
How many protons (p) and neutrons (n) are in an atom of calcium-46?
A. 20 p, 26 n B. 20 p, 46 n C. 26 p, 20 n D. 46 p, 20 n