Chemistry, 28.09.2021 22:00 lizbeth232001
2. Give an example of an element with different number of protons and neutrons.
3. Give an example of an element with same number of protons and neutrons.
4. Which particles form the nucleus of atom?
5. What has bigger mass - nucleus or electrons?
Give me the real answer!
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2. Give an example of an element with different number of protons and neutrons.
3. Give an example...
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