Flashcards
Atomic Number and Mass Number
Cards in this deck (8)
- 1The atomic number is the number of protons in the nucleusThe symbol for the atomic number is 'Z'
- 2Atomic number is used to identify what element an atom belong toEach element has a unique atomic number
- 3An element is a substance that cannot be chemically broken down into a simpler substanceElements include helium, oxygen and carbon
- 4The mass number of an atom is the number of protons + neutronsThe symbol for the mass number is 'A'
- 5If atoms have the same atomic number but different mass number they are...Isotopes
- 6Isotopes were first suggested by Frederick Shoddy in 1913Carbon 14 is an isotope used in dating artifacts
- 7The periodic table is a list of all known elements ordered by atomic numberDmitri Mendeleev ordered the first periodic table by atomic number
- 8The modern periodic table contains 118 elementsNew elements are still being discovered!
Information
- Description
- This Flashcard deck gives an introduction to Atomic and Mass numbers
- Created by
- ed.wilson89
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- History
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- Created by PatrickNoonan · Dec 9, 2013
- Copied by leonie.examtime · Dec 9, 2013
- Copied by ed.wilson89 · Dec 9, 2013
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