The fundamentals of chemistry: atoms, the periodic table, chemical bonds, reactions, and more.
30 cards · basic cards · AI-written, checked twice. Edit anything.
- What is an atom?
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The smallest unit of matter, made up of protons, neutrons, and electrons- Which particle has a positive charge?
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The proton- Which particle has a negative charge?
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The electron- Which particle has no charge?
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The neutron- Where are protons and neutrons found in an atom?
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The nucleus- What is the atomic number?
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The number of protons in an atom's nucleus- What is an element?
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A substance made of atoms that all have the same atomic number- What is the periodic table arranged by?
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Atomic number, in increasing order- What is the chemical symbol for oxygen?
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O- What is the chemical symbol for hydrogen?
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H- What is a molecule?
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Two or more atoms joined by chemical bonds- What is the chemical formula for water?
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H2O- What is an ionic bond?
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A bond between a negative ion and a positive ion, formed when electrons are transferred- What is a covalent bond?
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A bond formed when two atoms share electrons- What is an acid?
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A substance that releases hydrogen ions in water and has a pH below 7
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