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Periodic Table and Atoms Study Guide
1. Summarize the 4 main concept(s) in Dalton’s model
2. What occurred during Rutherford’s gold foil experiment (Specifically, what happened to the alpha
particles) This proved the existence of what?
3. Who said all matter was made up of four elements.
4. In Niel Bohr’s model of the atom, electrons move
a. like balls rolling down a hill
c. like popcorn in popcorn popper
b. like planets orbiting the sun
d. like beach balls on water waves
5. Identify which scientist did each of the following.
a. Named small part of matter after Greek word atamos
b. Discovered electrons
c. Discovered dense, positively charged nucleus
d. Proposed atoms were indestructible particles shaped like a solid sphere
e. Proposed that electrons move in spherical orbits
6. Atomic number identifies what?
7. What two particles make up an atoms mass?
8. What is the difference between Oxygen 17 and Oxygen 18?
9. Identify the charge, location of each of the following:
Proton=
Neutron=
Electron=
10. What is unique about any given element?
11. How do you find the number of neutrons in an atom?
12. Define nucleus
13. Define orbital (energy level).
14. Element D has 6 protons and 7 neutrons. Element E has 7 protons and 7 neutrons. These elements are
the same element, different elements
15. How many neutrons does Flourine (atomic #9) have? How about protons?
16. What element has 19 protons, 19 electrons, and 20 neutrons?
17. What does the electron cloud model show?
18. The elements on the periodic table are arranged by increasing _____________ ________________.
(hint: what number continually gets bigger as the table proceeds?)
19. Define what a group is on the periodic table.
20. Define what a period is on the periodic table.
21. Moving from left to right across a period of the periodic table, what value increases by exactly one from
element to element?
22-25 In the table below write the characteristics of each type of element.
Metal
Non-metal
Metalloid
26. Identify the element
a.
Which group of elements is found in nature only in compounds?
b.
Which element is found in most of the compounds in your body except for water?
c.
What element can be cut with a knife and also reacts violently with water?
d.
What element helps prevent tooth decay?
27.
T or F : To keep them from reacting, some highly reactive elements are stored in Oil
28.
What are valence electrons?
29.
Name the elements found in Group 2 of the periodic table.
30.
Which list of elements contains only metals?
a.
carbon, iodine, tin
c.
helium, iron, copper
b.
tin, copper, cesium d.
iodine, carbon, argon
21.
As you move from left to right across a period, the number of valence electrons…
(increases or decreases).
22.
Which of the following Group 1A elements is the most reactive?
a.
Cs (Cesium) c.
Fr (Francium)
b.
Li (Lithium) d.
Na (Sodium)
23.
24.
The most abundant element in Earth’s crust is __________________.
Which of the following elements can be found in the 4th period?
a.
Calcium (Ca) c.
Carbon (C)
b.
Zirconium (Zr)
d.
Beryllium (Be)
25.
Elements in the same period have the same number of ______________.
26.
a.
b.
c.
d.
e.
Identify the following as Metal, Nonmetal, or Metalloid:
found along stair step line between metals and non metals____________________
brittle, poor conductors, mostly gas at room temperatures_____________________
shiny, ductile, good conductors and shiny________________________
found on the right hand side of the periodic table__________________________
make up the majority of the periodic table__________________________
**Use the figure below to answer questions 27-30**
27. Which elements have the same number of
energy levels?
28. Which elements have the same number of
valence electrons?
29. If Na (sodium) is atomic number 11, what is
the atomic number of the element marked with a
“?”
30. How many valence e- does the element marked with a “?” have?