The atomic number of an atom of ⁸⁰_{Br is ________.} A)115 B)35 C)45 D)73 E)80

Question

Quizplus · Accepted Answer

The atomic number of an element is determined by the number of protons present in the nucleus of the atom. In the given compound, the atoms present are Sulfur (S), Uranium (U), Phosphorus (P), Carbon (C), Boron (B), and Bromine (Br). Counting the number of each atom, we have:

S1U1P180S1S1P0S1U1B1Br

1 Sulfur atom with atomic number 16 
1 Uranium atom with atomic number 92 
1 Phosphorus atom with atomic number 15 
1 Carbon atom with atomic number 6 
1 Boron atom with atomic number 5 
1 Bromine atom with atomic number 35

Adding all these up, we get:

16 + 92 + 15 + 6 + 5 + 35 = 169

Thus, the atomic number of the given compound is 169. However, since the compound is not a known or named substance, the closest answer choice is B, which corresponds to the atomic number of Bromine.

The Atomic Number of an Atom of 80Br Is ________

The Atomic Number of an Atom of ⁸⁰_{Br Is ________}