Free Exam: Atomic Structure
Number of Questions in Test: 15
Number of Questions in Preview: 5
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Which of the following is always true of an atom?
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | Yes |
Question 2
[i]You will need to refer to a periodic table.[/i] One isotope of sodium has a mass number of 24. The number of neutrons in one atom of this isotope is:
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | Yes |
Question 3
[i]You will need to refer to a periodic table. [/i]One isotope of bromine has a mass number 79. The number of electrons in one atom of this isotope is:
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | Yes |
Question 4
Which of the following are isotopes of the same element?
| Type: | Multiple response |
| Points: | 1 |
| Randomize answers: | Yes |
Question 5
An element has 4 protons, 4 electrons and 5 neutrons. It's relative atomic mass is:
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | Yes |