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Free Exam: Unit 3 Pre-Test (TRIAL)

Number of Questions in Test: 4

Note: Answers are not shown below but will be copied with this test.

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Question 1

The Bohr model shown represents an atom. Which element is this atom?

Type: Multiple choice
Points: 1
Randomize answers: No

Question 2

How many protons does a magnesium atom usually possess?

Type: Multiple choice
Points: 1
Randomize answers: No

Question 3

How many neutrons does a flourine atom contain?

Type: Multiple choice
Points: 1
Randomize answers: No

Question 4

A student places a small piece of sodium in a bearker of water. The sodium begins to smoke, hiss, and jump across the surface of the water. In a few seconds, the sodium dissappears. What is occurring here?

Type: Multiple choice
Points: 1
Randomize answers: No

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