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atoms
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Atoms
An atom is a particle that consists of a nucleus of protons and neutrons surrounded by a cloud of electrons. The atom is the basic particle of the chemical elements, and the chemical elements are distinguished from each other by the number of protons that are in their atoms. For example, any atom that contains 11 protons is sodium, and any atom that contains 29 protons is copper. The number of neutrons defines the isotope of the element. Atoms are extremely small, typically around 100 picometers across. A human hair is about a million carbon atoms wide. This is smaller than the shortest wavelength of visible light, which means humans cannot see atoms with conventional microscopes. Atoms are so small that accurately predicting their behavior using classical physics is not possible due to quantum effects. 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. If the number of protons and electrons are equal, then the atom is electrically neutral. If an atom has more or fewer electrons than protons, then it has an overall negative or positive charge, respectively – such atoms are called ions. The electrons of an atom are attracted to the protons in an atomic nucleus by the electromagnetic force. The protons and neutrons in the nucleus are attracted to each other by the nuclear force. This force is usually stronger than the electromagnetic force that repels the positively charged protons from one another. Under certain circumstances, the repelling electromagnetic force becomes stronger than the nuclear force. In this case, the nucleus splits and leaves behind different elements. This is a form of nuclear decay. Atoms can attach to one or more other atoms by chemical bonds to form chemical compounds such as molecules or crystals. The ability of atoms to attach and detach is responsible for most of the physical changes observed in nature. Chemistry is the discipline that studies these changes.
Anagrams for atoms »
moats
MOTAS
stoma
Numerology
Chaldean Numerology
The numerical value of atoms in Chaldean Numerology is: 1
Pythagorean Numerology
The numerical value of atoms in Pythagorean Numerology is: 5
Examples of atoms in a Sentence
We’re ultimately composed of atoms, the electromagnetic environment can have a physiological effect on the body.
We may perceive silence as hell or feel it as stilled happiness that brings us into harmony with our individuality. Some atoms or particles of sounds can, nonetheless, coincide with silence and create a mood of soothing relief. So, can the gentle roaring of the waves induce calmness and open another dimension to a cosmic experience. (“Sounds of silence”)
At the time we thought it would be impossible to combine the two oxygen atoms of a CO2 molecule together because CO2is a linear molecule, and you would have to bend the molecule severely for it to work, youre doing something really drastic to the molecule.
The diffuse ISM was historically considered too harsh and tenuous an environment for appreciable abundances of large molecules to occur, prior to the detection of C60, the largest known molecules in space were only 12 atoms in size. Our confirmation of C60 + shows just how complex astrochemistry can get, even in the lowest density, most strongly ultraviolet-irradiated environments in the Galaxy.
The radical novelty of modern science lies precisely in the rejection of the belief, which is at the heart of all popular religion, that the forces which move the stars and atoms are contingent upon the preferences of the human heart.
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Translations for atoms
From our Multilingual Translation Dictionary
- átomosSpanish
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"atoms." Definitions.net. STANDS4 LLC, 2024. Web. 25 Apr. 2024. <https://www.definitions.net/definition/atoms>.
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