the nucleus of an atom is composed of what
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Atom Every atom is composed of a nucleus and one or more electrons bound to the nucleus. The nucleus is made of one or more protons and typically a similar number of neutrons. Protons and neutrons are called nucleons. More than 99.94% of an atom's mass is in the nucleus. The protons have a positive electric charge, the electrons have a negative electric charge, and the neutrons have no electric charge.
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Atomic nucleus The nucleus is the small, dense region consisting of protons and neutrons at the center of an atom. The atomic nucleus was discovered in 1911 by Ernest Rutherford based on the 1909 Geiger–Marsden gold foil experiment.he nucleus is the small, dense region consisting of protons and neutrons at the center of an atom. The atomic nucleus was discovered in 1911 by Ernest Rutherford based on the 1909 Geiger–Marsden gold foil experiment.
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What does a nucleus of an atom contain? There are two different items that the nucleus of an atom can contain, protons and neutrons. The nucleus of a hydrogen atom contains one proton. The nucleus of a helium atom contains 2 protons and 2 neutrons. The nucleus of many lithium atoms contain 3 protons and 3 neutrons.here are two different items that the nucleus of an atom can contain, protons and neutrons. The nucleus of a hydrogen atom contains one proton. The nucleus of a helium atom contains 2 protons and 2 neutrons. The nucleus of many lithium atoms contain 3 protons and 3 neutrons.
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The Atom The Atom. The atom is the smallest unit of matter that is composed of three sub-atomic particles: the proton, the neutron, and the electron. Protons and neutrons make up the nucleus of the atom, a dense and positively charged core, whereas the negatively charged electrons can be found around the nucleus in an electron cloud.
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- The nucleus of the cell contains much of the DNA of the cell, and it regulates the activities of that cell, whatever those activities are.The nucleus is composed of chemical structures that orchestrate chemical reactions that make the cell function.he nucleus contains the DNA of the cell and this is vital for cell division and also for making the proteins that the cell needs to function. 3 people found this useful. Edit. Share to: 1  The Periodic Table of Elements Life is sustained by a number of chemical elements.
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Neutron Proton. Along with neutrons, protons make up the nucleus, held together by the strong force. The proton is a baryon and is considered to be composed of two up quarks and one down quark.It has long been considered to be a stable particle, but recent developments of grand unification models have suggested that it might decay with a half-life of about 10 32 years.hen we say that a proton is made up of two up quarks and a down, we mean that its net appearance or net set of quantum numbers match that picture.
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- So, since the nucleus contains both neutrons and protons, an … d the number of electrons is equal to the number of protons; for a reasonable massy atom, the mass of the electrons will be roughly 1/(2 x 1836) of the atom.e know that the nucleus of an atom contains the nucleons, the protons and neutrons that make up that atom. This is almost all the mass of the atom, and these protons and neutrons are bound very tightly.
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What is the composition of a comet: a ball of powdered snow, solid blocks of rocks, gas or does it depend on the comet? The nucleus is the relatively solid and stable centrally located part, mostly formed of ice and gas with a small amount of dust and other solids like hydrocarbons. An interesting characteristic of the nucleus surface is the presence of dust ;
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- Every atom is composed of a nucleus and one or more electrons bound to the nucleus. The nucleus is made of one or more protons and typically a similar number of neutrons. Protons and neutrons are called nucleons.
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What is in the nucleus of an atom? Answer   The nucleus of an atom contains protons and neutrons. Hydrogen-1 is the lone exception. It has a single proton in its nucleus. Protons and neutrons, when they ma…ke up an atomic nucleus, are called nucleons. Links can be found below for more information.
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What is the sum of the protons and the neutrons in the nucleus of an atom called? The sum of the number of protons and neutrons in the atomic nucleus is called the mass number.For example, Lithium has 3 protons and 4 neutrons in its nucleus. It's mass nu … mber is 7 (3+4). The mass number usually goes in front of the atomic symbol and in superscript, such as 7Li.The protons and neutrons, which are called nucleons when they are talked about as the components of an atomic nucleus, add up to make the atomic mass of an atom.Strictly speaking, the electrons are included, but they weigh next to nothing, being about 1/1836th the mass of a proton.he mass number usually goes in front of the atomic symbol and in superscript, such as 7Li. The protons and neutrons, which are called nucleons when they are talked about as the components of an atomic nucleus, add up to make the atomic mass of an atom.
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- One. The sodium atom is an atom. Atoms are not composed of other atoms, but rather smaller parts known as protons, neutrons and electrons; all of which except the electrons ma … y be broken down in to smaller parts known as quarks. 3 people found this useful.
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Questions and Answers Atoms can join together to form molecules, which in turn form most of the objects around you. Atoms are composed of particles called protons, electrons and neutrons. Protons carry a positive electrical charge, electrons carry a negative electrical charge and neutrons carry no electrical charge at all. The protons and neutrons cluster together in the central part of the atom, called the nucleus, and the electrons 'orbit' the nucleus.
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Do chemical bonds like ionic and covalent actually weigh anything? An atom is composed of a nucleus orbited by elections, right? Well, instead of something similar to the solar system, with individual particles going in their own little circles around a center particle, imagine the nucleus surrounded by elections that are chaotically orbiting so fast that, taken together, they resemble a cloud surrounding the nucleus.
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The Nucleus The atomic nucleus consists of nucleons—protons and neutrons. Protons and neutrons are made of quarks and held together by the strong force generated by gluon exchange between quarks. In nuclei with many nucleons, the effective strong forces may be described by the exchange of mesons (particles composed of quark-antiquark pairs). A proton consists of two up quarks and one down quark along with short-lived constituents of the strong force field. A neutron is similar except that it has two down quarks and one up quark. Although scientists are convinced that nucleons are composed of quarks, a single quark has never been isolated experimentally. Energy brought into a nucleus to try to separate quarks increases the force between them.
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- Rutherford's atom. Rutherford knew that atoms consist of a compact positively charged nucleus, around which circulate negative electrons at a relatively large distance. The nucleus occupies less than one thousand million millionth (10 ) of the atomic volume, but contains almost all of the atom's mass.
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- One. The sodium atom is an atom. Atoms are not composed of other atoms, but rather smaller parts known as protons, neutrons and electrons; all of which except the electrons ma … y be broken down in to smaller parts known as quarks.
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- Atoms are composed of three type of particles: protons, neutrons, and electron. Protons and neutrons are responsible for most of the atomic mass e.g in a 150 person 149 lbs, 15 oz are protons and neutrons while only 1 oz. is electrons. The mass of an electron is very small (9.108 X 10-28 grams).
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The Cell Nucleus Contained within the nucleus is a dense, membrane-less structure composed of RNA and proteins called the nucleolus. The nucleolus contains nucleolar organizers, which are parts of chromosomes with the genes for ribosome synthesis on them.
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The sum of protons and neutrons is called what? Atomic mass number. The nucleus is made up of protons and neutrons, the number of protons defines which element it is and gives the nucleus its positive charge. The neutrons create different isotopes. The sum of the protons and neutrons is the number of nucleons in the nucleus, this is called its mass number.If you have 6.02x10^23 atoms, it will weigh its atomic weigh in grams. This number is called Avagadro's constant. eg.he neutrons create different isotopes. The sum of the protons and neutrons is the number of nucleons in the nucleus, this is called its mass number. If you have 6.02x10^23 atoms, it will weigh its atomic weigh in grams.
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Chapter 3: Atoms: The Building Blocks of Matter. The atomic nucleus makes up most of the atom's mass. The nucleus contains the Protons and Neutrons and make up 99.999% of the mass of an atom.
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Neutron The nucleus consists of Z protons, where Z is called the atomic number, and N neutrons, where N is the neutron number. The atomic number defines the chemical properties of the atom, and the neutron number determines the isotope or nuclide.
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- Along with protons, neutrons make up the nucleus, held together by the strong force. The neutron is a baryon and is considered to be composed of two down quarks and one up quark. A free neutron will decay with a half-life of about 10.3 minutes but it is stable if combined into a nucleus.
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Science - Chapter 2 (Atoms and Bonding) Neutrons and protons make up the nucleus of an atom. They make up the mass of the atom. The volume of an atom is made up of electrons which move outside the nucleus Describe the parts of the atom and where they are found. Neutral atoms have the same number of electons (negative) and protons (positive).
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- An atom is made of protons, neutrons and electrons. The neutrons and protons are bundled up in the nucleus or center of the atom. The electrons on the other hand fly around the nucleus in a big cloud. It might help to think of electrons as social little creatures.
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Atomic Structure Atoms are composed of three type of particles: protons, neutrons, and electron. Protons and neutrons are responsible for most of the atomic mass e.g in a 150 person 149 lbs, 15 oz are protons and neutrons while only 1 oz. is electrons.The mass of an electron is very small (9.108 X 10 -28 grams).toms are composed of three type of particles: protons, neutrons, and electron. Protons and neutrons are responsible for most of the atomic mass e.g in a 150 person 149 lbs, 15 oz are protons and neutrons while only 1 oz. is electrons.