1. Question
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2. Convert 560 grams to kilograms.
What is 0.56 kg?
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3. What type of bond occurs when the force of attraction is between the nuclei of atoms and the electrons they share?
What is covalent?
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4. What is 100 degrees Celcius?
At what temperature does water boil in the metric system?
What is 100 degrees Celcius?
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5. In this Bohr model, what is the atomic number?
11 p+
11 no
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6. What is between the metals and nonmetals?
Where are the metalloids found on the periodic table?
What is between the metals and nonmetals?
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7. The number of protons in a neutral atom ______ the number of ______?
What are equals and electrons?
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8. Which of the following is a nonmetal? Ba, Na, Cu, O, Si
What is O?
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9. What is the charge of aluminum if it has 13 protons and 10 electrons?
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10. In Ernest Rutherford’s gold foil experiment, most positively charged particles passed through the foil, but a few particles were deflected strongly. From this result, he developed what idea about the atom?
The nucleus of an atom is clustered in a tiny region in its center, called the nucleus? It is mostly empty space.
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11. Which of the following elements are halogens? Br, Ne, B, I, O, Na, S
What are Br and I?
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12. How many neutrons does Potassium-39 have?
What is 20?
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13. What is a complete set (8)?
Atoms of one group of nonmetals, the noble gases, have this many electrons in their outermost energy level.
What is a complete set (8)?
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14. What is the element in group 15, period 4 (Sb = 52)?
Of the following, which has more protons?
Element in group 2 and period 3
Element in group 12 and period 4
Element in group 15 and period 4
What is the element in group 15, period 4 (Sb = 52)?
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15. What is the smallest part of an element that still has all chemical properties of that element?
What is an atom?
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16. The second energy level can hold up this many electrons.
What is 8?
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17. This element is a gas at room temperature, and its atoms have six electrons in their outer level.
What is oxygen?
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18. What is Li (only 1 valence electron)?
Based on the number of valence electrons, which of the following is the most reactive? Li, Be, B, Ne
What is Li (only 1 valence electron)?
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19. An atom’s identity is determined by which subatomic particle?
What is the proton?
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20. In a group on the periodic table, what generally happens to atomic radius? (size of the atoms)
What is the get larger?
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21. Why do elements in a family or group in the periodic table often share similar properties?
What is they have the same number of electrons in their outer energy level?
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22. Which element has a full outer energy level with only 2 electrons?
What is Helium?
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23. Oxygen is in Group 16. How many valence electrons does oxygen have?
What is 6?
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24. Which of the following elements tends to gain electrons and form negative ions? Li, Ba, O, C
What is Oxygen?
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25. This Greek philosopher gave us the name “atom.”
Who is Democritus?
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26. In a controlled experiment, a single factor is changed in one setup, but no change is made in the other setup. What is the factor that was changed?
What is a variable?
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27. Which pair of atoms will form an ionic bond
Which pair of atoms will form an ionic bond? Li and Cu, Mg and Cl, or O and N
What are Mg and Cl?
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28. Which subatomic particle is the most important in determining how an atom will bond?
What is the electron?
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29. Which element is in the same period as Calcium (Ca) and the same group as Chlorine (Cl)?
What is Br?
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30. What is the atomic mass of Magnesium? Use the periodic table.
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31. How much water is in this container?
What is 24 mL ?
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