How many atoms are in a compound?

Compounds are made of two or more atoms of different elements, such as water (H2O) and methane (CH4). Atoms are not drawn to scale. Molecules of compounds have atoms of two or more different elements. For example, water (H2O) has three atoms, two hydrogen (H) atoms and one oxygen (O) atom.

What is the strongest force in an atom?

The strong nuclear force, also called the strong nuclear interaction, is the strongest of the four fundamental forces of nature. It holds together the quarks that make up protons and neutrons, and part of the strong force also keeps the protons and neutrons of an atom’s nucleus together.

How are atoms held together?

The strong force is a force which attracts protons to protons, neutrons to neutrons, and protons and neutrons to each other. So the nucleus of an atom is held together by the strong force, while the electrons are held in the atom by the electric force.

What holds an electron together?

Oppositely charged particles attract each other, while like particles repel one another. Electrons are kept in the orbit around the nucleus by the electromagnetic force, because the nucleus in the center of the atom is positively charged and attracts the negatively charged electrons.

Is Elysium possible?

Actually building an Elysium-like space station would require some major advances in humanity’s ability to live in space for an extended period of time and it might not be able to happen in 150 years, Uhran said. Nuclear propulsion could be a viable possibility eventually, but the idea isn’t ready for prime time yet.

How much gravity is in space?

But where the space station roams, some 220miles (354 km) up, the force of gravity is still about 90 percent what it ishere on the surface.

Is centrifugal force real?

The centrifugal force is very real if you are in a rotating reference frame. However, the centrifugal force is an inertial force, meaning that it is caused by the motion of the frame of reference itself and not by any external force.