Quiz
Chemistry GCSE C2aTopics1, 2 &3
Perguntas do quiz (7)
1Name the three types of particle in an oxygen atom.
- Aprotons, neutrons, electrons
- Bneutrons, oxygen, nucleus
- Celectrons, nucleus, oxygen
2State the relative mass and charge of an electron
- Amass = 1/200, charge negative
- Bmass =1/2000, charge positive
- Cmass = 1/2000, charge negative
3The element boron has 5 protons. How many electrons does a boron atom have in its outer shell?
- A1
- B2
- C3
- D4
4Is it the number of protons or the number of neutrons that defines each element?
- Aprotons
- Bneutrons
5What does the mass number represent?
- Athe number of protons in the atom
- Bthe total number of protons and neutrons in the atom
- Cthe number of protons and electrons in the atom
- Athe number of protons in the atom
6what does the atomic number represent?
- Athe number of protons in the atom , (the same as electrons)
- Bthe number of neutrons and electrons
- Cthe total number of protons, neutrons and electrons
7Which is the correct definition of the term isotope?
- AIsotopes are: different atomic forms of the same element, which have the SAME number of electrons but DIFFERENT number of protons
- BIsotopes are: different atomic forms of the same element, which have the SAME number of protons but DIFFERENT numbers of electrons
- 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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- Some revision questions for Edexcel specification.
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- English
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