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The atomic number of an element is determined by the number of electrons in the nucleus of the atom.

True
False***

The motion of electrons can be predicted precisely.
True
False***

Leptons are found in the nucleus of atoms.
True
False***

Matter can change its form but it cannot be destroyed.
True***
False

Are these correct?

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  5. 🚩

3 answers

  1. on the lasr: what does mass energy equivalence mean?

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  2. Ah, I see, I confused matter with mass.

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  3. It's True for the last one

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