Master the essential building blocks of A-Level Chemistry with this easy-level deck covering atomic structure, bonding, moles, and energetics tailored for the Cambridge 9701 syllabus.
20 cards
Front
Isotope
Back
Atoms of the same element with the same number of protons but different numbers of neutrons. They have identical chemical properties but different physical properties (e.g., density).
Front
First Ionisation Energy
Back
The energy required to remove one mole of electrons from one mole of gaseous atoms to form one mole of gaseous 1+ ions. Equation: X(g) -> X+(g) + e-.
Front
Electronegativity
Back
The power of an atom to attract the electron pair towards itself in a covalent bond. It increases across a period and decreases down a group.
Front
Relative Atomic Mass (Ar)
Back
The weighted mean mass of an atom of an element relative to 1/12th of the mass of an atom of carbon-12. Calculated using isotope abundance.
Front
The Mole
Back
The unit of amount of substance. One mole contains exactly 6.022 x 10^23 (Avogadro's constant) elementary entities (atoms, molecules, or ions).
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