Chemistry, 29.08.2019 16:10 laceytoyne72
2) what is the name of a group of atoms that have the same atomic number but different atomic mass?
3) fluorine’s atomic number is 9 and its atomic mass is 19. how many neutrons does fluorine have?
4). an uncharged atom of boron has an atomic number of 5 and an atomic mass of 11. how many protons does boron have?
5). how can you determine the approximate mass of an atom, in atomic mass units?
6). atoms with the same number of protons but with different electrical charges are
7). in salt, what is the nature of the bond between sodium and chloride?
8). an ionic bond involves
9). the innermost electron shell of an atom can hold up to how many electrons? (the shell closest to the nucleus)
10). what determines the types of chemical reactions or bonds that an atom participates in?
Answers: 1
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Drug abuse will not lead to physical and psychological dependence. true or false ?
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If many scientists conduct the same or similar experiments, and all obtain similar results, a can be written, which is a generally agreed-upon statement that explains and predicts how a natural phenomenon works.
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Asample of sea water contains 6.28g of sodium chloride per litre of solution. how many milligrams of sodium chloride would be contained in 15.0ml of this solution?
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2) what is the name of a group of atoms that have the same atomic number but different atomic mass?...
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