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An atom is smallest unit into which matter can be divided without the release of electrically charged particles. It also is the smallest unit of matter that has the characteristic properties of a chemical element. As such, the atom is the basic building block of chemistry. Investigate varying electron configurations in electron shells around an atom's nucleus. Investigate varying electron configurations in electron shells around an atom's nucleus.
added by Anonymous 86 days ago 0    0

An tom is a fundamental piece of matter ( any thing that can be touched physically) an atom is a particle of matter that uniquely defines a chemical element. An atom consists of a. Central nucleus,any thing that has amass In other words any thing that occupies space that is my suggestion about an tom
added by Anonymous 93 days ago 1    0

What is atom.
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smallest particle of an element which may or may not exist freely in nature, but can take part in chemical reaction as unit is called an atom.
the word atom has been taken from Greek word ATOMOS-means indivisible . It was believed that matter consited of simple indivisible particles called atoms. this term was used by 460-370 B.C)

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