An atom has eight protons.
Since each proton has a charge of +1, the whole atom
so far has a charge of +8 .
If we want an overall charge of only +2, we need to cancel
or neutralize 6 of those positive charges somehow.
We have two choices:
==> rip off 6 protons and throw them away
Well, the protons are in the nucleus. It's almost impossible to
rip particles out of a nucleus, and if you manage to do it, you
end up with a completely different substance. So the first choice
doesn't seem like the way to go. Let's look at the second one.
==> glue something onto the atom that has 6 negative charges
NOW we're getting somewhere !
ELECTRONS have negative charges ... 1 apiece.
Electrons are everywhere, they're easy to get, and easy to
work with. We could go on Amazon and order 6 electrons,
we could have them by tomorrow, and GET THIS: Opposite
charges attract each other anyway, so if we bring the electrons
anywhere near the 8 protons, they'll snap in and get glued on
automatically. THIS is the way to change our atom to +2 ...
with some electrons.
<span>In this situation when using newton's third law, the floor is very rigid and thus when we fall the floor applies
the same amount of force on us with which we were falling on it. The rigidness of the concrete floor makes it difficult for it to absorb some of our force. On the other hand sand is not rigid on impact sine it changes its shape while it absorbs a
large amount of our falling force and a small fraction of this
force is applied on is. That is why we don't get hurt</span>
Note: 2.5 * 10^3 kg = 2.5 * 10^3 * 10^3 = 2.5 * 10 ^6 g, Because 1 kg = 10^3 g
This is simple proportion
1.80 grams of air has a volume of 1 liter.
1 gram of air would have a volume of (1/1.8) liter
Therefore, 2.5 * 10^6 g would have: 2.5*10^6 * (1/1.8) = 1.3888 * 10^6 liters of air.
To show your engaged in the learning topic and to show your undivided attention
1. Outer planets - c. gaseous, spherical, cleared its neighborhood.
2. Density - f. amount of matter in an object, in a given space.
3. Orbital distance - e. Distance between any planet and the sun.
4. Mass - a. Amount of matter in an object.
5. Asteroid - b. Irregular rock orbiting between mars and Jupiter.
6. Volume - d. amount of space an object takes up.
