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You are thinking of nuclear fusion, where in the stars hydrogen forms into helium with energy release
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Why is the lowest energy level of an atomic orbital the one farthest from the nucleus?
The lowest energy level is NOT farthest from the nucleus. It is closest to the nucleus. The energy levels of an atom are expressed as negative numbers. In an energy level diagram the level nearest the nucleus will be the largest negative number. But again this means it is the lowest energy. For example, -8 is larger then -13.
In the use of nuclear fuels where does the power come from?
Energy contained in bonds within a nucleus that is converted to kinetic energy.
What is a large object at the same temperature as a smaller one has more or less thermal energy?
Thermal energy depends on mass, temperature and specific heat capacity of the material. Larger means, is that in mass? If so then thermal energy would be more in larger compared to that smaller at the same temperature provided both are made up of the same material.
Why are atomic bombs classified as nuclear?
Atomic bombs release energy in two ways. One is a fission bomb where the nucleus of a large atom is split into smaller parts. The amount of energy in the original atom is greater than the energy stored in the small pieces. This is the energy released. Atoms larger than iron can release energy when they are split up. The other is fusion or thermonuclear. It is called "thermo" because it needs to be very hot for it to happen. This is where the nucleus of two small atoms like hydrogen (deuterium H-2 or Tritium H-3) are joined together. The energy of the single hydrogen atoms is greater than the combined pieces. This is the type of nuclear reaction that occurs in the sun that provides us with sunlight and warmth. Atoms smaller than iron can release energy when they are joined together. The energy released in both types of bomb comes from the atom's nucleus, therefore the word nuclear.
Why does ionization energy decrease down the family?
You question is not very clearly stated but I think I know what you are asking. As you go down the column of any family of elements in the periodic table, you move to increasingly heavier and larger atoms. Their outer electrons are therefore farther from the nucleus, and even though the nucleus is larger and has a larger positive charge, the increased distance is the predominant influence, making the outermost electrons less tightly bound, and therefore more easily ionized, with a lower ionization energy.
Energy is released when smaller nuclei join to form a larger nucleus in a process called what?
Nuclear fusion
Are the nuclear reactors the same processes occurring in the sun and reactors?
No. The sun produces energy by fusion. It is joining hydrogen atoms into larger helium atoms, which releases energy. Man-made nuclear reactors produce energy by fission. They break large atoms into smaller atoms, which also releases energy.
Is the atom that remains after the nucleus disintegrate larger of smaller than the original atom?
smaller
Why can nuclei of carbon oxygen and iron be found in stars?
Nuclear fusion between nuclei of smaller atoms forms the nuclei of larger atoms and releases energy.
Are chromosomes larger than a cell?
No, chromosomes are smaller than cells. Chromosomes are found in the nucleus of cells which codes for the synthesis of proteins.
What is the two smaller nuclei joining to form a larger nucleus?
fusion
Combines two smaller nuclei to make a larger nucleus?
Geiger counter
Compare and contrast fusion and fission?
With nuclear fission, a large atomic nucleus (such as a uranium nucleus) breaks apart into smaller nuclei, and energy is released. With nuclear fusion, small atomic nuclei (such as hydrogen) join to become larger nuclei, and energy is released. Fusion of hydrogen releases much more energy than any other type of either fusion or fission. Note that the dividing line between heavy nuclei and light nuclei is the iron nucleus, which is at the perfect point of nuclear stability, so that neither fusion nor fission of iron nuclei would release any energy.
What do you call a smaller crystal used to grow a larger crystal?
a nucleus or plural nuclei
Is nucleus smaller than atom?
An atom comprises an atomic nucleus with orbiting electrons. So the nucleus is smaller than an atom. To phrase it the opposite way, an atom is alwys larger than the nucleus (of the same atom of course!!)
Why is the lowest energy level of an atomic orbital the one farthest from the nucleus?
The lowest energy level is NOT farthest from the nucleus. It is closest to the nucleus. The energy levels of an atom are expressed as negative numbers. In an energy level diagram the level nearest the nucleus will be the largest negative number. But again this means it is the lowest energy. For example, -8 is larger then -13.
Are sublevels smaller or larger than energy levels?
Depends on what one means by "smaller". Since sublevels are "inside" or part of the principle energy level, then yes, they are smaller.
