Amir wants to change this model to represent a different isotope of oxygen How could he make this change? А
add one green candy
B
rearrange the blue candies
C.
add one red candy
D
take away two blue candies

Option A. Add one green candy

Explanation:

From the question given above, the following data were obtained:

Red color => Proton

Green => Neutron

Blue => Electron

Isotopy is a phenomenon where by two or more elements have the same atomic number by different mass number due to the difference in the neutron number. The atoms involved are called isotopes.

From the above definition, isotope exist when the neutron number of the atoms are different with each having same atomic number (i.e proton number).

Thus, considering the question and the options given above, the only way to make a different isotope of oxygen is to add a green candy (i.e neutron).

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.