What happens to an atom when it is considered unstable?

An unstable atom has excess internal energy, with the result that the nucleus can undergo a spontaneous change towards a more stable form. This is called ‘radioactive decay’. If it decays with emission of an alpha or beta particle, it becomes a new element.

Can atoms be stable?

Atoms found in nature are either stable or unstable. An atom is stable if the forces among the particles that makeup the nucleus are balanced. An atom is unstable (radioactive) if these forces are unbalanced; if the nucleus has an excess of internal energy.

Can we cover the earth with one mole of pennies?

1 mol of pennies distributed around the Earth would give everyone 1 million trillion dollars. 6.02 X 1023 Donut Holes: Would cover the earth and be 5 miles (8 km) deep. 6.02 X 1023 Pennies: Would make at least 7 stacks that would reach the moon.

How do unstable atoms gain stability?

Unstable systems gain stability by losing energy. Unstable nuclei lose energy by emitting radiation in a spontaneous process called radioactive decay.

What determines stability of an atom?

The two main factors that determine nuclear stability are the neutron/proton ratio and the total number of nucleons in the nucleus.

How does the transfer of charge occur between two objects?

The transfer of charge between objects occurs more readily if the second object is made of a conducting material. Conductors allow for charge transfer through the free movement of electrons. In contrast to conductors, insulators are materials that impede the free flow of electrons from atom to atom and molecule to molecule.

Why does it take energy to push atoms close to each other?

So, to push two atoms close to each other requires energy because all of their electrons have to pass on an unoccupied upper energy level. Attempting to approach the atoms on the table finger requires a much larger amount than the one provided by our muscles.

Can You Put Your Hand between the wings of an atom?

You can think of the empty space inside an atom as a fan in operation. When it does not turn, you can put your hand between its wings, but when it starts, we have another situation. If you are reluctant and trying to put your hand between the moving waves, you will suffer physically and solidly consciously.

Why are we made of atoms and not electrons?

Around it rotates, almost like the planets around the Sun, small points of matter called electrons. However, there is plenty of free space between the electrons and the nucleus, which means that all of us, are made up of atoms, are formed of a lot of empty space.