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Combined Science: Physics

GCSE · Edexcel · foundation

QuestionsFlashcards

Expressing Quantities & SI Units
- Units & Prefixes
  8
- Conversions & Standard Form
  6

Atomic Structure
Radioactive Decay
Dangers of Radiation
- Dangers of Radiation
  5
- Contamination & Irradiation
  6

Magnetism
Electromagnetism & The Motor Effect
- Magnetic Fields in Wires
  6
- Magnetic Fields in Solenoids
  6

Transformers & the National Grid
- The National Grid
  5
- The Ideal Transformer Equation
  3

Atomic & Mass Number Flashcards

All 5 cards in this deck

What is the atomic (proton) number of an atom?: The number of protons in its nucleus.
What is the mass (nucleon) number of an atom?: The total number of protons and neutrons (nucleons) in its nucleus.
In a symbol written as ¹⁴₆C, what does each number tell you?: Top number = mass number (14); bottom number = atomic number (6).
How do you find the number of neutrons in a nucleus from its mass number and atomic number?: Number of neutrons = mass number − atomic number.
True or false? Atoms of different elements can have the same positive charge on their nucleus.: False. Each element has its own characteristic nuclear charge, set by its number of protons.