Name: __________________________________
Atoms & the Periodic Table Task Card
Questions
1. Which of the following has a negative electric charge?
a. proton
b. electron
c. neutron
d. nucleus
2. Determine the mass number and atomic number of a chlorine atom that has 17 protons and 18 neutrons.
3. Elements are organized in the periodic table by increasing atomic _____.
4. If the atomic number of an element is 5 and the mass number is 10, explain how you determine the number of
neutrons.
5. What particles are found in the nucleus of an atom?
a. electrons and protons
b. electrons and neutrons
c. protons and neutrons
d. protons, neutrons and electrons
6. Determine what elements are represented by the following symbols:
Au = _______________ Hg = _______________
Fe = _______________
7. The first periodic table based on atomic mass was devised by __________________________.
8. Identify the three particles that make up an atom along with their charges.
a. _________________, with a charge of ___________
b. _________________, with a charge of ___________
c. _________________, with a charge of ___________
9. Each energy level of an atom has a maximum number of _____ it can hold.
a. electrons
b. protons
c. neutrons
d. quarks
10. List the chemical symbols for the elements:
Aluminum , symbol _________,
Zinc, symbol, _________,
Copper, symbol, __________.
11. Horizontal rows of the periodic table are called ____________________.
12. Explain how elements are abbreviated in scientific shorthand. Explain how and why we use symbols for
elements.
13. The number of _____ identifies the element.
a. protons
b. electrons
c. neutrons
d. quarks
14. If a carbon atom has 7 neutrons and 6 protons, what is its mass number?
15. Atoms of the same element with different numbers of neutrons are called _________________.
16. Classify the following elements as a metal, nonmetal or a metalloid:
Carbon ________________
Boron ________________
Sodium ________________
17. The halogens are located in which groups? _________
a. 1
b. 2
c. 16
d. 17
18. Describe three properties of elements that are metal.
a.
b.
c.
19. Identify the part of the periodic table showing the # 7. What is the #7 indicating to us?
20. Explain what the elements in the same period have in common.
21. Which of the following is NOT found in the nucleus of an atom.
a. protons
b. electrons
c. neutrons
d. quarks
22. Moseley corrected the early problems of the periodic table by arranging the elements in order of increasing
atomic _____.
23. Vertical columns in the periodic table are called _____.
24. Identify the three regions the periodic table is divided into.
a.
b.
c.
25. Draw an electron dot diagram (not a Bohr’s model) for aluminum (Al).
26. Draw a Bohr model of nitrogen.
27. Describe what an electron dot diagram represents.
28. Explain the significance of the noble gases. What is different, or important about them?
29. Which element makes up 90% of the atoms in the universe and is highly reactive?
a. Neon
b. Iron
c. Oxygen
d. Hydrogen
30. Determine the group AND period of the element gold.
31. What is the only metal found in liquid state at room temperature?
32. Elements in found in Groups 3 through 7 of the periodic table are called the ___________________ elements.
Don’t forget to use your resources if needed, your INB, I.T., and textbook (pgs 338-339) will be helpful.
33. The most reactive metals on the periodic table are located in _____.
a. Group 1
b. Group 2
c. Groups 3-12
d. along the stair step
34. What is the region (area) around the nucleus that is occupied by electrons called?
35. Elements that are gases, brittle and poor conductors are ____________________________.
36. Define atom.
37. The maximum number of electrons allowed in the second energy level of an atom is _____.
a. 2
b. 4
c. 8
d. 18
38. The number of which particle determines the identity of an element?
39. Protons and neutrons are made up of smaller particles called ___________________.
40. Explain why electron positions cannot be pinpointed.