3 years ago

How many protons are in an element with an atomic number of 8 and a mass of 18?

2 answers:

8 0

B.8 because protons are the same as electrons and the atomic number.

Hoped I helped!

4 0

B: 8 the amount of protons is equal to the atomic number

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Keith_Richards [23]

The answer would be C. Hope this helps

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nignag [31]

KE = 0

<h3>Further explanation </h3>

Energy is the ability to do work

Energy because its motion is expressed as Kinetic energy (KE) which can be formulated as:

$\large{\boxed{\bold{KE=\frac{1}{2}mv^2}}}$

So for two objects that have the same speed, the greater the mass of the object, the greater the kinetic energy

The stone in hand is in a motionless state (at rest) so that its velocity (v) = 0, so it has no kinetic energy

But this stone can have <em>potential energy that is gained due to its height</em>

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Kruka [31]

Answer:

for more details are in the pic

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