Chemistry revision C2.1 + C2.2 structure and bonding 5.0 / 5 based on 1 rating ? BiologyHealthy livingGCSEAQA Created by: melisaCreated on: 18-09-13 22:13 Which of the following does the nucleus contain? The nucleus contains protons and neutrons. 1 of 10 Which of the following statements is correct? Protons are positively charged and electrons are negatively charged. 2 of 10 What is the atomic number of an atom? The atomic number of an atom is the number of protons it contains. 3 of 10 Which of the following statements is true of an atom? In an atom, the number of protons is always equal to the number of electrons. 4 of 10 An element has the electronic structure 2,8,4. Which group is it in? An element with the electronic structure 2,8,4 is in Group 4. 5 of 10 Two elements have these electronic structures: 2,1 and 2,8,1. What can you say about the elements? Elements with the electronic structures 2,1 and 2,8,1 are both in Group 1. 6 of 10 Which electronic structure is correct for an element with 17 electrons? The electronic structure for an element with 17 electrons is 2,8,7. 7 of 10 What do the elements in a group have the same number of? The elements in a group have the same number of electrons in the highest occupied energy level or outer shell. 8 of 10 What do the elements in a period have the same number of? The elements in a period have the same number of occupied energy levels or shells. 9 of 10 Which of these electronic structures belongs to a noble gas? The electronic structure of the noble gas helium is 2. 10 of 10
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