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Chemistry GCSE C2aTopics1, 2 &3

Chloeby 7 Fragen 5,0 (1 Bewertung)

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  1. 1Name the three types of particle in an oxygen atom.
    1. Aprotons, neutrons, electrons
    2. Bneutrons, oxygen, nucleus
    3. Celectrons, nucleus, oxygen
  2. 2State the relative mass and charge of an electron
    1. Amass = 1/200, charge negative
    2. Bmass =1/2000, charge positive
    3. Cmass = 1/2000, charge negative
  3. 3The element boron has 5 protons. How many electrons does a boron atom have in its outer shell?
    1. A1
    2. B2
    3. C3
    4. D4
  4. 4Is it the number of protons or the number of neutrons that defines each element?
    1. Aprotons
    2. Bneutrons
  5. 5What does the mass number represent?
    1. Athe number of protons in the atom
    2. Bthe total number of protons and neutrons in the atom
    3. Cthe number of protons and electrons in the atom
  6. 6what does the atomic number represent?
    1. Athe number of protons in the atom , (the same as electrons)
    2. Bthe number of neutrons and electrons
    3. Cthe total number of protons, neutrons and electrons
  7. 7Which is the correct definition of the term isotope?
    1. AIsotopes are: different atomic forms of the same element, which have the SAME number of electrons but DIFFERENT number of protons
    2. BIsotopes are: different atomic forms of the same element, which have the SAME number of protons but DIFFERENT numbers of electrons
    3. CIsotopes are: different atomic forms of the same element, which have the SAME number of protons but DIFFERENT numbers of neutrons

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Beschreibung
Some revision questions for Edexcel specification.
Autor
Chloeby
Sprache
English
Aufrufe
121
Schlagwörter
gcse
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