Amos is using three different colors of candy to create atomic models. He constructs a model of an oxygen atom as demonstrated.

Question

Amos wants to modify this model to represent a different isotope of oxygen. What adjustments could he make to achieve this?

(1 point)
Responses

take away two blue candies
take away two blue candies

add one red candy
add one red candy

add one green candy
add one green candy

rearrange the blue candies
rearrange the blue candies
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Answer 1

To represent a different isotope of oxygen, Amos would need to adjust the number of neutrons in the nucleus of the atom. Since isotopes of an element have the same number of protons but a different number of neutrons, he should add one green candy (representing a neutron) to his model of the oxygen atom.

So, the correct adjustment to represent a different isotope of oxygen is to add one green candy.