2. 200 Subatomic Bomb 800 600 400 1000 200 I’m charged up ! 800 600 400 1000 200 My relationship with a mole 800 600 400 1000 200 Switzerland was neutral too. 800 600 400 1000 200 Go Isotopes! 800 600 400 1000

3. Column 1, 200 What subatomic particles are located in the nucleus of an atom?

4. Column 1, 400 What are the charges of protons, neutrons & electrons?

5. Column 1, 600 An atom that has 15 protons, 15 electrons, and 16 neutrons has a charge of this.

6. Column 1, 800 What is the mass number of an atom with 19 protons and 23 neutrons in its nucleus?

7. Column1, 1000 How many more neutrons are found in the nucleus of an iron atom with a mass number 55 than in the nucleus of a calcium atom with a mass number 39?

8. Column 2, 200 An element in column 16 (6A) on the periodic table contains how many valence electrons?

9. Column 2, 400 How many protons and electrons are in the following ion? Se 2-

10. Column 2, 600 Copper forms an ion with a +2 charge. This ion forms when a neutral copper atom does what?

11. Column 2, 800 How many protons and electrons are in the following ion? Fe 3+

12. Column 2, 1000 Lithium will form an ion with a charge of what? How will it do this?

13. Column 3, 200 Use the following balanced chemical equation to answer the following: B 2 Br 6 + 6HNO 3 → 2B(NO 3 ) 3 + 6HBr How many moles of HBr will be produced with 11 moles of HNO 3 ?

14. Column 3, 400 Use the following balanced chemical equation to answer the following: 4NH 3 + 5O 2 → 4NO + 6H 2 O How many moles of H 2 O will be produced with 15 moles of O 2 ?

15. Column 3, 600 Consider the balanced chemical reaction: 2Fe + 3 H 2 S0 4 → Fe 2 (SO 4 ) 3 + 3H 2 How many moles of Fe 2 (SO 4 ) 3 will be produced if we begin with 150 grams of iron?

16. Column 3, 800 Use the following balanced chemical equation to answer the following: B 2 Br 6 + 6HNO 3 → 2B(NO 3 ) 3 + 6HBr How many grams of B(NO 3 ) 3 will be produced with 21 moles of HNO 3 ?

17. Column 3, 1000 Use the following balanced chemical equation to answer the following: 4NH 3 + 5O 2 → 4NO + 6H 2 O How many grams of NH 3 are needed to produce 90 grams of water?

18. Column 4, 200 All ionic formulas have a charge of this.

19. Column 4, 400 Write the formula for the ionic compound calcium oxide.

20. Column 4, 600 Write the formula for the ionic compound formed by the ions below. Zn 2+ OH -

21. Column 4, 800 Write the formula for the ionic compound formed by the ions below. CO 3 2- Al 3+

22. Column 4, 1000 In the formula: (NH 4 ) 2 SO 3 The sulfite ion has a charge of (2-), therefore the ammonium ion has a charge of this.

23. Column 5, 200 Isotopes of the same element have a different number of what subatomic particles?

24. Column 5, 400 What is the most common isotope of lead?

25. Column 5, 600 How many neutrons are in an isotope of strontium-86?

26. Column 5, 800 How many protons and neutrons are found in an isotope of 235 U? 92

27. Column 5, 1000 Calculate the average atomic mass of the following element: the first isotope has a mass of 37 and a percent abundance of 63.4%, while the second isotope has a mass of 35 and a percent abundance of 36.5%.