Flashcards
3. Atoms elements and compounds 3.1
Cards in this deck (10)
- 1ATOMSSmallest particles of matter that cannot be broken down into anything more simple by chemical means
- 2SUBATOMIC PARTICLES•Protons
•Neutrons
•Electrons
no of electrons = number of protons - 3PROTONSCharge : Positive
Mass : 1
Location : In the nucleus of the atom - 4NEUTRONSCharge : 0
Mass : 1
Location : In the nucleus of the atom - 5ELECTRONSCharge : negative
Mass : 0
Location: Electron cloud - 6ATOMIC/PROTON NUMBERNumber of protons in an atom
- 7NUCLEON/MASS NUMBERNumber of PROTONS and NEUTRONS in an atom
- 8ISOTOPEAtoms of the same element with the same number of neutrons but a different number of PROTONS - therefore have similar physical propertied but different chemical properties
- 9RADIOACTIVE ISOTOPES & Uses• Emit radioactivity from the nucleus and decay into more stable atoms
Uses: medical = used to STERILIZE medical equipment ; used to treat cancer
Industrial = used to detect leaks in oil and gas pipelines - 10NON-RADIOACTIVE ISOTOPESIsotopes which don't show radioactive decay
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- Atomic Structure and the Periodic Table
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- Anna JEFFERIS
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