An element that has 32 protons and 52 neutrons has an approximate atomic weight of:
A) 20 amu.
B) 32 amu.
C) 52 amu.
D) 60 amu.
E) 84 amu.

Question

Quizplus · Accepted Answer

The atomic weight of an element is approximately equal to the sum of its protons and neutrons. Thus, the atomic weight of the element with 32 protons and 52 neutrons is approximately 32 + 52 = 84 amu. The closest answer choice is E, 84 amu.

An Element That Has 32 Protons and 52 Neutrons Has