It's harmful to humans; especially Children and Infants. Because it affects the development of the brain and nervous system
Explanation is in a file
bit.
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Bohr changed the model of the atom by proposing that electrons travelled in circular orbits with specific energy levels.
Explanation:
chemical formula tells you the specific elements included in the compound and the number of atoms of each. The letters in a chemical formula are the symbols for the specific elements. So for example, H means hydrogen.