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日期:2024-07-11
The name Atom applies to a pair of related Web standards. The Atom Syndication
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日期:2024-07-15
An atom is the smallest unit of matter that defines the chemical elements. Every solid, liquid, gas, and plasma is made up of neutral or ionized atoms. Atoms are very small: the size of atoms is measured in picometers - trillionths (10−12) of a meter.[1][...
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日期:2024-07-17
Chem4Kids.com! This tutorial introduces atoms in chemistry. Other sections include matter, elements, the periodic table, reactions, and biochemistry. ... Useful Reference Materials Encyclopedia.com: http://www.encyclopedia.com/topic/Atoms.aspx Wikipedia:...
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日期:2024-07-16
Atoms are in your body, the chair you are sitting in, your desk and even in the air. Learn about the particles that make the universe possible. ... It has been said that during the 20th century, man harnessed the power of the atom. We made atomic bombs an...
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日期:2024-07-15
Explore atom properties of the chemical elements through this periodic table ... The periodic table is a table of the chemical elements in which the elements are arranged by order of atomic number in such a way that the periodic properties (chemical perio...
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日期:2024-07-13
Atomism (from Greek ἄτομον, atomon, i.e. "uncuttable", "indivisible"[1][2][3]) is a natural philosophy that developed in several ancient traditions. The atomists theorized that nature consists of two fundamental principles: atom and void. Unlike their mod...
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日期:2024-07-16
Chem4Kids.com! This tutorial introduces atomic structure in chemistry. Other sections include matter, elements, the periodic table, reactions, and biochemistry. ... Atoms are the foundation of chemistry. They are the basis for everything in the Universe. ...