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loris [4]
2 years ago
6

If the element gallium has an atomic number of 31 and an atomic mass of 70, how many neutrons does it have?

Physics
1 answer:
Mumz [18]2 years ago
6 0

Answer:

The answer is 39.

Explanation:

The atomic number refers to the number of protons and the atomic mass is the sum of the protons and neutrons. So, you would just do 70 - 31 and that gets you 39.

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With the switch open, roughly what must be the resistance of the resistor on the right for the current out of the battery to be
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Answer:

The resistance must be 6.67\Omega

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