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please help me ! now please this is science.​

Please Help Me Now Please This Is Science class=

Sagot :

Answer:

Atomic number is the number of protons in the nucleus of an element. If this number changes, the element changes.

Explanation:

Answer:

Atomic number is the number of protons in the nucleus of an element

If the number changes the number of protons changes

Explanation:

I know this because I did this lesson in October