Chemistry Assessments

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Alkali metals refer to the elements in Group 1 of the periodic table, known for being highly reactive and forming strongly alkaline hydroxides with water.

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Iron is an example of a transition metal, which are found in the central block of the periodic table and are characterized by their ability to form various oxidation states.

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In the periodic table, a period refers to a horizontal row of elements, where elements are arranged in order of increasing atomic number.

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Neon is classified as a noble gas, characterized by its lack of reactivity due to having a full valence electron shell.

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Metalloids are elements with properties intermediate between those of metals and nonmetals, often found along the "staircase" line on the periodic table.

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The electron configuration of an element describes the distribution of electrons in the atomic orbitals around the nucleus of an atom.

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Metals are distinguished by their ability to conduct heat and electricity well, along with being malleable and ductile.

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The atomic mass of an element is the weighted average mass of the atoms in a naturally occurring sample of the element, considering the relative abundance of its isotopes.

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Lithium is the lightest metal and has the lowest density among the metals, often used in batteries and other applications where lightweight materials are preferred.

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Fluorine has the highest electronegativity of all elements on the periodic table, making it extremely reactive and a strong oxidizing agent.