Periodic Table And Atomic Structure Multiple Choice Questions and Answers for Practice

16. The smallest particle into which an element can be divided and still have the properties of that element is called a(n)

1. atom.
2. neutron.
3. nucleus.
4. electron.

17. The elements in each vertical column on the periodic table usually have similar properties and are called a(n)

1. element.
2. property.
3. period.
4. group.

18. How do the physical and chemical properties of the elements change?

1. periodically within a family
2. periodically across each group
3. periodically within a group
4. periodically across each period

19. Every atom of a given element has the same number of

1. electrons.
2. isotopes.
3. protons.
4. neutrons.

20. Most metals are

1. dull.
2. not malleable.
3. solid at room temperature.
4. bad conductors of electric current.

21. Periodic describes

1. something that occurs frequently.
2. something that occurs three or four times a year.
3. something that occurs at regular intervals.
4. something that occurs very rarely.

22. Which one of the following tells the physical state of an element at room temperature?

1. the atomic mass
2. the element name
3. the atomic number
4. the color of the chemical symbol

23. Which of the following statements describes most metals?

1. They are dull.
2. They are good conductors of electric current.
3. They are easily shattered.
4. They are gases at room temperature.

24. Which of the following is a property of alkali metals?

1. They are stored in water.
2. They have few uses.
3. They are so hard they cannot be cut.
4. They are very reactive.

25. Which statement is true about isotopes of the same element?

1. They have a different atomic number.
2. They have the same mass.
3. They have the same number of protons.
4. They have the same number of neutrons.