GuideFoot - Learn Together, Grow Smarter. Logo

In Chemistry / High School | 2014-09-03

How many neutrons are probably in the nucleus of an element with an atomic weight of 197?

a. 43
b. 79
c. 83
d. 100
e. 118

Asked by Catheryn

Answer (2)

atomic weight = 197 symbol = Au electrons = 79
neutrons = 197 - 79 = 118
answer: E

Answered by pyromorphite | 2024-06-10

The element with an atomic weight of 197, specifically gold (Au), has 118 neutrons. This is calculated by subtracting its atomic number (79 protons) from its mass number (197). Hence, the correct option is e. 118.
;

Answered by Anonymous | 2024-12-26

Related Questions in Chemistry

📝 Answered - The change in state from liquid to solid is called a.) freezing b.) condensation c.) melting d.) sublimation

📝 Answered - What word describes a liquid that is resistant to flow (e.g., it does not pour easily)? A. surface tension B. viscous C. cohesive D. adhesive

📝 Answered - Explain why an object in space may remain in motion at a constant velocity.

📝 Answered - Title: $CH -01-12$ Based on its formula, sugar $C _6 H _{12} O _6$ is an example of what? a. an element b. a compound c. a homogeneous mixture d. a heterogeneous mixture

📝 Answered - Which component is transferred between substances in an oxidation-reduction reaction? A. electrons B. energy C. oxygen D. protons