Question

The diagram shows four different locations in an atom.

A shaded circle is shown, labeled nucleus. Two small points labeled two and three are shown inside this shaded circle. A lighter shaded concentric circle is shown with a radius more than double the radius of the inner circle. A point labeled one is shown inside a section of this circle which does not overlap with the inner circle. A flower petal like shaded region is shown above and below these circles. A point labeled four is shown inside the lower petal.

Which locations are likely to have subatomic particles with the least mass? (3 points)

Group of answer choices

1 and 2

2 and 3

1 and 4

3 and 4

Answer 1

The answer is 1 and 4.

Step-by-step explanation:

Mass is most concentrated in the nucelus of an atom. Therefore, if you are looking to find the area with the least mass, go outside of the nucelus. Points one and four are the furthest outside of the nucleus.

Answer 2

1 and 4

Step-by-step explanation:

In the figure attached, a plot of the problem is shown.

Location 1 and 4 are likely to have subatomic particles with the least mass because they are not in the nucleus, which is the location with most of the mass of the atom.