Survey of Physical Science

Question # 00784964 Posted By: dr.tony Updated on: 11/26/2020 05:45 AM Due on: 11/26/2020
Subject Education Topic General Education Tutorials:
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1. Which statement about the elements in the first column of the periodic table is not true?

 (a) they all have one electron in their outermost shell (b) Except for hydrogen, they are all active metals. (c) Except for hydrogen they all form positive ions. (d) They are all nonmetals.

2. Iodine, which is in the next to the last column of the periodic table

(a) is a very active metal (b) has seven electrons in its outermost shell (c) tends to form positive ions (d) is very unreactive

3. The theory of evolution was proposed by

(a) Charles Darwin (b) Alfred Wegener (c) Lord Kelvin (c) Ernest Rutherford

4. The number of major plates into which the lithosphere is divided is

 (a) 3 (9) 5 (c) 7 (d) 9

5. When light is directed at certain metal surfaces, the emitted electrons

(a) Are called photons (b) have random energies (c) have energies that depend on the intensity of the light (d )have energies that depend on the frequency of the light

6. The speed of a photon

 (a) is less than the speed of light (b) is equal to the speed of light (c) is greater than the speed of light (d) any of the above, depending on the frequency

7. A proton and an electron have the same de Broglie wavelength.

(a) The electron has a higher speed. (b) The proton has a higher speed. (c) They have the same speed (d) Any of the above is true, depending on the wavelength.

8. A photon is emitted by an atom when one of the atom’s electrons

(a) leaves the atom. (b) collides with another of its electrons. (c) shifts to a lower energy level. (d) shifts to a higher energy level.


9. The fact that no two electrons in an atom can have the same set of quantum numbers is known as the (a) Bohr principle (b) de Broglie principle (c) exclusion principle (d) uncertainty principle

10. The largest number of elements are classified as

(a) metals (b) inert gases (c) nonmetals (d) liquid

11. The most active of the following metals is

(a) copper (b) lead (c) potassium (d) gold

12. The least active of the following gases is

(a) chlorine () oxygen (c) hydrogen (d) helium

13. An atom whose outer electron shell is filled is

a halogen (b) an active metal (c) an active nonmetal (d) a noble gas (inert gas)

14. The number of hydrogen atoms in a molecule of ammonium sulfide, (NH4)2S, is

(a) 2 (b) 4 (c) 6 (d) 8

15. The number of atoms in a molecule of Ca3(PO4)2 is

(a) 8 (b) 12 (c) 13 (d) 16

16. A fracture surface in the earth’s crust one side of which has moved relative to the other is called a

 (a) fault (b) fault scrap (c) sill (d) dike

17. It is believed that India

(a) was always part of the Asian landmass (b) rose from the Tethys Sea (c) was once separated from Asia and later migrated to its present position (d) is movin away from the Asian landmass

18. The age of the earth is approximately

(a) 6000 years 12 million years (c) 4.5 billion years

19. Which column on the periodic table has nonmetals at the top and metals at the bottom. (a) Group 1A (b) Group 2A (c) Group 4A (c) Group 7A

20. Which element will form an ionic bond with Potassium

(a) Ca (b) Al (c) Kr (d) I

21. Of the four elements listed below, which is the smallest

(a) Be (b) Mg (c) Sr (d) Ba

22. How many valence electrons does Phosphorous (P) have

(a) 2 (b) 3 (c) 5 (d) 7

23. Of the four elements listed below, which is the smallest?

 (a) Na (b) Al (c) P (d) S

24. Of the four elements listed below, which has the highest ionization energy?

(a) Ca (b) Ge(c) As (d) Br

25. Of the four elements below, which has the lowest ionization energy?

(a) Be (b) Mg (c) Sr(d) Ba

For questions 26--34 Fill in the table below with the person who made the described contribution. Use only people covered ion this unit.

26. First to place electrons in orbit around nucleus

27. Developed the first periodic table

28. Said particles could have a wavelength


Use the Periodic Table Below for Questions 35-40 Use the letters in the periodic table below (A, B, C . . . ), and not actual elements.

35 . The least reactive element?

36. Has four valence electrons?

37. The most active non- metal?

29. Developed the first model of the atom

30. Developed a particle model of light

31. Determined atoms are mostly empty space

32. First to treat the electron as a wave

33. Indicated that it was not possible to determine the position and velocity of an electron at the same time.

34. Discovered the electron

38 Has the highest ionization energy?

39. Has two valence electrons?

40. A very reactive metal?

41. Compare and contrast the Rutherford atom with the Bohr atom. How are they the same? How are they different

42. Compare and contrast the Bohr atom with the quantum mechanics model of the atom? How are they the same, how are they different?

43. Compare Wegener’s theory with plate tectonics. How are they similar? How are they different?

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