An atom of boron (B) has 5 protons and 6 neutrons. What is its mass number?A.5B.6C.11D.16SUBMITarrow_backPREVIOUS

Break Down the Problem

1. Identify the components that contribute to the mass number of an atom, which are protons and neutrons.

Relevant Concepts

2. The mass number (A) of an atom is defined as the total number of protons and neutrons in its nucleus. $A = \text{Number of Protons} + \text{Number of Neutrons}$

Analysis and Detail

3. In this case:
   • Number of Protons (Z) in boron = 5
   • Number of Neutrons (N) in boron = 6
   • Thus, we calculate the mass number as follows: $A = 5 + 6$ $A = 11$

Verify and Summarize

4. The calculated mass number of boron is 11, which is consistent with the addition of its constituent protons and neutrons.

Final Answer

The mass number of the atom of boron is C. 11.