chemistry terms

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Last updated 1:00 PM on 3/26/26

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What is an atom?

An atom is the smallest unit of an element, consisting of protons, neutrons, and electrons.

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What is the chemical formula for water?

The chemical formula for water is $H_2O$ .

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What is the pH scale?

The pH scale measures the acidity or alkalinity of a solution, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.

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What is a molecule?

A molecule is a group of two or more atoms bonded together by chemical bonds.

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What is the periodic table?

The periodic table is a tabular arrangement of elements, organized by atomic number, electron configuration, and recurring chemical properties.