1. Tuesday

2. Chemistry test 1 review

3. 1. What is located
in the energy levels or cloud?
Electrons
2. What is located
inside the nucleus?
Protons and neutrons

4. Add the protons and neutrons together.
3. By looking at an atom, how can you determine the atomic mass (mass number)?
Add the protons and neutrons together.
4. How can you tell the difference between atoms?
The number of protons.

5. 5. What is the atomic number, protons, electrons for:
Sc- W-
Hg-
Cu-
Na- O-
Fe- H-
He- S-
Pb - 21 74 80 29 11 8 26 1 2 16 82

6. 6. How do you determine the number of neutrons given the atomic mass and atomic number?
M# - A# = N
7. How do protons and neutrons differ?
Protons have a Positive Charge
Neutrons are Neutral

7. 8. If an atom has an atomic mass of 14, what is the number of electrons? __________ What is the number of protons? 7 7
9. If an atom has 23 protons and 23 electrons, what is the atomic number of this element? 23
10. What are the names of the elements from question 8 and 9?
Nitrogen and Vanadium

8. 11. Identify each part of a tile on the periodic table:
Atomic Number 7 N
Nitrogen 14
Symbol
Name
Atomic Mass

9. 30 Zn
Zinc 65 35 Br
Bromine 80
Atomic # _______ Atomic # ______
Atomic Mass ______ Atomic Mass ______
# of Protons _______ # of Protons _______
# of Neutrons______ # of Neutrons______
# of Electrons ______ # of Electrons_____ 30 35 65 80 30 35 35 45 30 35

10. 14. Draw a Lithium Atom - + + - + -

11. 15. Draw a Boron Atom: - - + - + - + + + -

12. 16. Name this element
Nitrogen

13. metal 3 10 nonmetal 17 nonmetal metal 13 20 metal 11 metal 36 nonmetal
17. Complete the Chart:
Element Name
Atomic Number
Metal/nonmetal/metaloid
Lithium
Neon
Chlorine
Aluminum
Calcium
Sodium
Krypton
metal 3 10
nonmetal 17
nonmetal
metal 13 20
metal 11
metal 36
nonmetal

14. 18. What is the difference between an element and acompound?
Elements are made of one type of atom only. Compounds are two or more elements combined chemically
19. Draw a representation of each
Element Compound

15. 20. Hydrogen and Oxygen are ___________ and water is a _____________
Elements
Compound

16. - + 21 Label the atom, include the charge for the particle. neutral

17. 22. Explain the difference between Nuclear Fission and Nuclear Fusion
Fission is the splitting of atoms and fusion is the joiner of two atoms to create a new element.
23. What does Static Electricity have to do with Atomic Structure?
Atoms become Negatively charged with electrons.

18. N -2 C C C N +2 24. What is an Isotope?
An atom with a mass different than listed on the periodic table. + or – neutrons.
25. How do you write the names of Carbon with masses of 12, 13, and 14?
C-12, C-13, C-14
26. How do you write the symbols for Carbon 12,13 and 14? 12 6 C C 6 13 C 6 14
27. What is the symbol for a nitrogen Ion that only had 5 electrons? 9 electrons?
N +2
N -2

19. 3 2 20 4 10 2 17 3 14 3 32. Complete the Chart: Element Atomic Number
Number of Energy Levels
Lithium
Calcium
Neon
Chlorine
Silicon 3 2 20 4 10 2 17 3 14 3