A. helium, neon and argon, because they are in the same group or column
Answer:
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This is genetic engineering.
I hope this helps!
Cheer,s July.
Answer:
protons
These particles do not vary in quality from one element to another; rather, what gives an element its distinctive identification is the quantity of its protons, called its atomic number. Protons and neutrons contribute nearly all of an atom's mass; the number of protons and neutrons is an element's mass number
Explanation: