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GCSE Physics · key term
A negatively charged subatomic particle found outside an atom's nucleus.
Used by AQA, Edexcel and OCR
Specification 4.2.5.1, 4.4.1.1 · Paper 1
A negatively charged subatomic particle that can be transferred from one material to another.
Revise: Static chargeProtons in atomic nuclei are positively charged, while electrons are negatively charged. An uncharged object has equal total positive and negative charge, so its overall charge is zero.
A negatively charged particle found around an atom’s nucleus.
Specification 6.1, 6.5, 6.6, 6.7, 10.1, 10.8, 10.24 · Paper 1, Paper 2
A negatively charged subatomic particle surrounding the nucleus, with relative charge −1 and a very small relative mass.
Revise: Atomic ModelAn atom has a tiny central nucleus surrounded by negatively charged electrons. The nucleus contains two kinds of particle: positively charged protons and uncharged neutrons.
A negatively charged sub-atomic particle with a relative mass of about .
A negatively charged particle found outside an atom’s nucleus.
A negatively charged subatomic particle found around the nucleus, with negligible relative mass and a relative charge of −1.
A negatively charged particle. Electrons free to move through a metal carry its electric current.
A negatively charged particle whose movement through a metal produces an electric current.
Specification P1.1a, P1.1b, P3.1a, P3.1c · Paper 1 (Foundation), Paper 3 (Higher)
A negatively charged particle within an atom.
Revise: Development of the atomic modelThomson’s work with cathode rays provided evidence for the electron, a negatively charged particle within atoms. Dalton’s indivisible sphere could not account for it. Because an atom has no overall electric charge, Thomson proposed that its negative electrons were embedded in a sphere of positive charge, balancing them.
A negatively charged subatomic particle found in the region surrounding an atomic nucleus; its mass is very small compared with the masses of protons and neutrons.
A negatively charged particle found in atoms.
A negatively charged particle found in atoms that can be transferred between objects.
Paper 1, Paper 2
A negatively charged particle that can be transferred from one material to another.
Revise: Electric chargeThe positive charge is associated with protons in atomic nuclei, while negatively charged electrons occupy the material around those nuclei.
A negatively charged subatomic particle that surrounds the nucleus at particular energy levels.
State that electrons are transferred; do not say that positive charge or protons move between the materials.
When explaining charge, link gaining electrons to negative charge and losing electrons to positive charge.
Remember: the two materials acquire equal amounts of opposite charge because the electrons lost by one are gained by the other.
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