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sergejj [24]
3 years ago
8

Science please help me!!!!

Chemistry
1 answer:
balu736 [363]3 years ago
7 0
1)Atoms are the basic units of matter and the defining structure of elements. Atoms are made up of threeparticles<span>: </span>protons<span>, neutrons and electrons. </span>Protons<span> and neutrons are heavier than electrons and reside in the center of the atom, which is called the </span>nucleus<span>.

</span>
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