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miss Akunina [59]
3 years ago
9

Which element has an atomic number of 9 and an atomic mass of 19?

Physics
2 answers:
MA_775_DIABLO [31]3 years ago
6 0
I honestly don’t know but i have to answer something just kidding it’s c
yan [13]3 years ago
3 0

Answer:

fluorine

Explanation:

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As stated in the statement, we will apply energy conservation to solve this problem.

From this concept we know that the kinetic energy gained is equivalent to the potential energy lost and vice versa. Mathematically said equilibrium can be expressed as

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