Chemistry

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Which scientist discovered the electron in atoms?

When steel wool in put into vinegar a chemical reactions starts and the temperature rises. This is an example of a:

If an atom an atomic number of 24 and a mass of 49, how many protons does the atom have?

The atomic mass of an atom is equal to the number of:

Why does an atom have a neutral charge?

Which scientist came up with the term Atom?

What part of the subatomic particles are found in the nucleus?

Use a periodic table, how many protons,