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Why is an atom not really indivisible?
An atom was once thought to be indivisible, but modern science has shown that atoms are made up of even smaller particles called protons, neutrons, and electrons. The discovery of subatomic particles through experiments such as particle accelerators has disproven the idea of atoms being indivisible.
What were the particles thought to make up the nucleus of the atom to account for both atomic number and atomic mass before the discovery of neutrons?
Before the discovery of neutrons, the nucleus of an atom was thought to be composed of protons and electrons. Electrons were believed to be part of the nucleus to account for atomic mass and the balance of charge, with protons contributing to both atomic number and mass. This model was ultimately proven incorrect as it did not adequately explain the properties of atomic nuclei, leading to the realization that neutrons were necessary to account for the stability and mass of the nucleus.
How are gluon's involved in force within the atom?
Strong nuclear forces act through gluons in the nucleus
How did this discovery help scientists investigate the smallest particles of matter?
The discovery of subatomic particles, such as electrons, protons, and neutrons, revolutionized our understanding of matter by revealing that atoms are not indivisible, as previously thought. This insight allowed scientists to explore the fundamental forces and interactions that govern particle behavior, leading to the development of quantum mechanics and the Standard Model of particle physics. Additionally, advancements in particle accelerators enabled researchers to probe deeper into the structure of matter, uncovering even smaller particles like quarks and leptons. Overall, this discovery paved the way for significant breakthroughs in both theoretical and experimental physics.
How many protons in an atom of sulfar?
Sulfur is element number 16. this means it has 16 electrons, 16 protons, and if you subtract the mass number of 32, this means there is 16 neutrons. PS: even thought the mass number is 32.06, its because the mass of the proton and the neutron isn't exactly 1. Although pretty close
How many nucleons does an alpha particle contain?
An ALPHA particle may be thought of a a helium nucleus. It contains two protons and two neutrons. An alpha particle is a high speed helium nucleus (He^(2+)).
Particle made of a quark and an antiquark that is thought to bind protons and neutrons together inside the nucleus of an atom?
It is called MESON.
Quarks are thought to be the basic component of?
A quark is currently considered an elementary particle, therefore it is not comprised of anything but is itself one of the smallest particles. However, string theory may explain more about this question.
What is the second smallest thing in the world?
The second smallest thing in the world is thought to be a quark, which is a subatomic particle that is a building block of protons and neutrons. Quarks are fundamental particles that are not thought to have any substructure.
What are the tree subatomic particles of an atom?
In the nucleus are located protons and neutrons. Orbiting the nuceuls are "shells" of electrons. There are actually various other, hypothetical, sub-atomic particles, including gluons (believed to hold neturons and protons together) and the as yet elusive Higgs-Boson particle (thought to give atoms their mass).
Which subatomic particle comes from a line of James Joyces's book finnegans wake?
The subatomic particle named "Quark" is believed to be inspired by the sentence "Three quarks for Muster Mark" from James Joyce's book "Finnegans Wake." This sentence is thought to be the origin of the term "quark," which is a fundamental particle that makes up protons and neutrons in the atomic nucleus.
Why is mercury-194 the unstable one I thought it was molybdenum-98 since the neutrons are LESS than protons and therefore don't balance out the strong/electric force between protons and neutrons. How do you determine which isotopes are unstable?
yes
Why is an atom not really indivisible?
An atom was once thought to be indivisible, but modern science has shown that atoms are made up of even smaller particles called protons, neutrons, and electrons. The discovery of subatomic particles through experiments such as particle accelerators has disproven the idea of atoms being indivisible.
What is the smallest complete unit of matter?
The smallest unit of matter is an atom, which is made up of protons, neutrons, and electrons. Protons and neutrons are made up of quarks, while electrons are thought to be fundamental particles.
Why neutrons were discovered quite late?
Neutrons were discovered last, probably due to the lack of an electric charge. An electric charge would make the neutron more obvious for a variety of experiments.
What is the mass number of a fluorine atom with 8 neutrons?
The atomic number is nine, because there are 9 protons. The mass number is 19, because an element does not have a charge, unless it forms to an ion. Therefore, if protons and neutrons have an amu of 1, the equation is as follows: Mass number (19)- Atomic number (9)= 10. There are 10 Neutrons and 9 protons.
Do neutrons have the same number of protons in an atom?
No. There are several very common cases in which the number of neutrons differs from the number of protons. For early elements (the lighter ones), the proton to neutron ratio is generally 1 to 1. For example, the common hydrogen atom always has 1 proton, and usually 1 neutron. Larger elements, such as uranium, have a larger ratio. If you have ever seen, uranium is often referred to as uranium 238, the key particle in the atomic bomb. Uranium has 92 protons, meaning the difference in mass is accounted for by 146 neutrons. So the neutron to proton ratio in this case is about 1.6. The reason that the ratio differs along the periodic table can be explained by two forces. The first is electromagnetism. You are probably familiar with this. Life particles (such as 2 protons) repel while opposite particle (such as proton and electron) attract. But remember that electrons orbit around the nucleus of an atom. The nucleus itself consists of protons and neutrons. Neutrons don't seem to matter as they are electrically neutral, but how are protons able to sit by each other so tightly packed if a powerful repulsive force exists between them? The answer to that lies in a different force that is strong enough to overcome their repulsiveness at extremely close distances. This force is actually simply called the strong force or sometimes, the strong nuclear force. This force is an attraction between protons and protons, neutrons and neutrons, and even protons and neutrons! I'm not sure how well this force is understood, but we certainly know it's there. Otherwise, it would be impossible for the elements of the periodic table to even exist due to the electromagnetic repulsion of like particles! Now as we get to bigger and bigger elements along the periodic table, there are more protons packed together in a tightly spaced nucleus of a given element. This means that the electromagnetic repulsive force is dramatically increasing simply because there are more particles to repel each other. More neutrons, then, are needed to maintain a form of equilibrium, something strong enough to bind the nucleus in place. Therefore, the ratio increases. One last note: I stated that the early elements held a one to one proton to neutron ratio in general, leaving the implication that it does not necessarily have to be one to one. This would be correct if you thought that. The hydrogen atom actually has two other known isotopes (different number of neutrons then usual). Hydrogen can have one proton and two neutrons. This compound is known as deuterium, and is part of the cause for "hard water". However, deuterium is a more unstable form and does not exist as much. Hydrogen can also exist with three neutrons, and this particle is known as tritium. It is highly radioactive due to the substantial instability that it holds. A particle of such small size is not "designed" to hold onto so many neutrons because it doesn't really need more than 1 to account for the one proton. Because of such a high instability, tritium very rarely exists at all. Hope this helped! :)
