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GCSE Chemistry · key term
A negatively charged ion formed when an atom gains electrons.
Used by AQA, Edexcel and OCR
Specification 4.2.1.2 · Paper 1
A negatively charged ion formed when an atom gains one or more electrons.
Revise: Ionic Bonding MechanismThe non-metal has more electrons than protons, so it becomes a negative ion, or anion.
Specification 0.1, 1.21, 1.22, 1.24, 1.26, 3.24, 3.26, 3.27, 9.5C, 9.6C, 9.7C · Paper 1, Paper 2
A negatively charged ion.
Revise: Formulae of Elements and IonsPositive ions are cations and negative ions are anions.
A negatively charged ion, formed when an atom gains one or more electrons.
An ion with a negative charge.
A negatively charged ion, formed when an atom or group of atoms gains one or more electrons.
A negatively charged ion that moves towards the positive anode during electrolysis.
A negatively charged ion, such as , or .
A negatively charged ion, such as chloride, Cl⁻, or sulfate, SO₄²⁻.
Specification C2.2a, C2.2d, C3.4a, C3.4b, C3.4d, C4.2b, C4.2d, PAG 2, PAG 5, PAG 6 · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
A negatively charged ion, formed when an atom gains one or more electrons.
Revise: Metals vs Non-MetalsGaining negative charge forms a negatively charged ion, called an anion.
A negatively charged ion, attracted to the positive anode during electrolysis.
A negatively charged ion, attracted towards the positive anode during electrolysis.
An ion with a negative electrical charge, produced when an atom or group of atoms gains one or more electrons.
A negatively charged ion.
A negatively charged ion, such as a carbonate, halide or sulfate ion.
A negatively charged ion, such as a carbonate, sulfate or halide ion.
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
A negatively charged ion, often formed when a non-metal atom gains electrons.
Revise: Metals vs non-metalsNon-metal atoms commonly gain electrons in these reactions, producing negatively charged ions called anions. The attraction between the oppositely charged ions forms an ionic compound.
A negatively charged ion formed by gaining one or more electrons.
A negatively charged ion, formed when an atom or group of atoms gains one or more electrons.
A negatively charged ion, attracted to the positive electrode during electrolysis.
A negatively charged ion that is attracted to the anode.
A negatively charged ion, formed when an atom or group of atoms gains electrons.
Link charge, electrode and direction explicitly: positive cations migrate to the negative cathode; negative anions migrate to the positive anode.
Check the electrode signs carefully: the cathode is negative and attracts cations; the anode is positive and attracts anions.
Use both parts of the evidence. Identifying only the cation or only the anion does not fully identify an unknown salt.
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