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Varvara68 [4.7K]
3 years ago
5

What does the atomic number of an atom tell us?

Physics
2 answers:
Feliz [49]3 years ago
6 0

Answer:

the number of protons in the atom

Explanation:

Trava [24]3 years ago
5 0

Answer:

the number of protons in the atom.

Explanation:

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A 2 kg ball is thrown upward with a velocity of 15 m/s. What is the kinetic energy of the ball as it is being thrown?
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Answer:

A closed system.

Explanation:

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3 years ago
How much heat is needed to change the temperature of 3 grams of gold (c = 0.129 ) from 21°C to 363°C? The answer is expressed to
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Q= mcΔT

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363 + 273 = 636K

Now...

Q= (0.003)(0.129)(636-294)

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