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Everything in existence is composed of atoms, fundamental units featuring a nucleus of protons and neutrons, orbited by electrons []. The number of protons dictates an element's identity, with atoms of the same element possessing varying numbers of neutrons, known as isotopes []. The periodic table organizes these elements, with columns (groups) indicating the number of valence electrons, crucial for bonding, and rows (periods) representing electron shells []. Metals, predominantly left of a dividing line, are shiny and malleable, while non-metals to the right are often gases; semimetals occupy the line with intermediate properties []. Bonding occurs when atoms seek a lower energy state, typically by achieving a full outer electron shell [].
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Video summary will appear here after you start watching
Everything in existence is composed of atoms, fundamental units featuring a nucleus of protons and neutrons, orbited by electrons []. The number of protons dictates an element's identity, with atoms of the same element possessing varying numbers of neutrons, known as isotopes []. The periodic table organizes these elements, with columns (groups) indicating the number of valence electrons, crucial for bonding, and rows (periods) representing electron shells []. Metals, predominantly left of a dividing line, are shiny and malleable, while non-metals to the right are often gases; semimetals occupy the line with intermediate properties []. Bonding occurs when atoms seek a lower energy state, typically by achieving a full outer electron shell [].