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Atoms & The Periodic Table Practice Test

Multiple Choice

Identify the choice that best completes the statement or answers the question.

____ 1. The periodic table of the elements is divided by a line that zigzags along the right side. Which of the following is true for most of the elements that lie along the zigzag line?

|A. |They are metals. |

|B. |They are metalloids. |

|C. |They are nonmetals. |

|D. |They are transition metals. |

____ 2. The segment of the periodic table below shows the elements in Groups 1 through 9.

[pic]

Which pair of elements are in the same group?

|A. |Rb and Cs |

|B. |Ca and Ti |

|C. |Li and Be |

|D. |Na and Mg |

____ 3. Metals are often used to make pots and pans for cooking. Which property of metals makes them useful for this purpose?

|A. |They are shiny. |

|B. |They are brittle. |

|C. |They can be drawn into wires. |

|D. |They are good conductors of thermal energy. |

| |____ 9. 4. The periodic table has a lot of information in the form of letters and numbers. The information is organized|

| |into boxes, which are placed in rows and stacked in columns. Which of the following does each box represent? |

| | |

| |A. |

| |a group |

| | |

| |B. |

| |a period |

| | |

| |C. |

| |an element |

| | |

| |D. |

| |a compound |

| | |

____ 36. Which group lists the parts of an atom from the most massive to the least massive?

|A. |proton, nucleus, electron |

|B. |nucleus, electron, proton |

|C. |electron, nucleus, proton |

|D. |nucleus, proton, electron |

____ 37. What is the mass number of an atom that has 4 protons, 4 electrons, and 5 neutrons?

|A. |4 |

|B. |5 |

|C. |9 |

|D. |13 |

____ 38. Which of these statements describes a fact about an electron cloud?

|A. |It is the most massive part of an atom. |

|B. |It is made up of electrons and neutrons. |

|C. |It is where an atom’s electrons are found. |

|D. |It is located in the center of an atom’s nucleus. |

____ 29. The diagram below shows a model of an atom.

[pic]

Which label points to the nucleus?

|A. |A |

|B. |B |

|C. |C |

|D. |D |

____ 30. An atom’s mass number is 210 and its atomic number is 85. How many neutrons does the atom have?

|A. | 85 |

|B. |125 |

|C. |210 |

|D. |295 |

____ 31. Marcus wants to use two objects to compare the sizes of a proton and an electron. If he uses a basketball for a proton, which object would best represent an electron?

|A. |a pea |

|B. |a beach ball |

|C. |a soccer ball |

|D. |a bowling ball |

____ 32. Calcium is an element. What is the smallest particle of calcium that has all the chemical properties of calcium?

|A. |an atom of calcium |

|B. |a proton from a calcium atom |

|C. |an electron from a calcium atom |

|D. |a molecule that contains calcium |

Atomic Structure: Use the Periodic Table of Elements to fill in the chart below with information about each element. (2 pts each)

|Element Name |Atomic Number |Number of Protons |Number of Neutrons |Number of Electrons |

| | | | |34 |

|Neon | | | | |

| | | |8 | |

| |46 | | | |

1. In the space below, draw a Bohr model of a Fluorine atom.

Label the valence electrons. How many valence electrons does this atom have? ______

What element does your atom represent? Explain.

Bohr models do not correctly show the location of electrons in an atom. Explain why they are still useful to predict bonding of atoms.

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