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- 1. Multiple ChoiceHow many protons are in Carbon (C)?612118
- 2. Multiple ChoiceHow many protons does Helium (He) have?1204
- 3. Multiple ChoiceHow many electrons does Copper (Cu) have?29643558
- 4. Multiple ChoiceHow many electrons does Barium (Ba) have?5681137218
- 5. Multiple ChoiceHow many neutrons does Barium (Ba) have?5681137218
- 6. Multiple ChoiceHow many neutrons does Beryllium (Be) have?4295
- 7. Multiple ChoiceHow many electrons does Beryllium (Be) have?4295
- 8. Multiple ChoiceHow many protons does Sodium (Na) have?11233412
- 9. Multiple ChoiceHow many neutrons does Sodium (Na) have?11233412
- 10. Multiple ChoiceHow many neutrons does Hydrogen (H) have?102-1
- 11. Multiple Choice
How many protons are in Gold
79
197
118
276
- 12. Multiple Choice
How many electrons are in Gold
79
118
197
276
- 13. Multiple Choice
How many neutrons are in Gold
118
79
197
276
- 14. Multiple Choice
How many Neutrons are in Neon
10
21
20
30
- 15. Multiple Choice
These two subatomic particles contribute to the mass of the atom.
Protons and Electrons
Protons and Neutrons
Electrons and Neutrons
- 16. Multiple Choice
An atom of a certain element has 53 protons, 53 electrons and a mass number of 127.
How many neutrons are in this atom?
64
74
106
180
- 17. Multiple Choice
Nitrogen has a mass of 14 and 7 protons. How many neutrons does nitrogen have?
21
14
7
8
- 18. Multiple Choice
What do the letters A=P=E represent?
atomic number, protons, electrons
atomic mass, protons, electrons
atomic number, periods, energy shells
atomic mass, periods, energy shells
- 19. Multiple Choice
What do the letters in M-A=N represent?
mass number, atomic number, nucleus
atomic mass, atomic number, neutrons
mass number, atomic mass, neutrons
atomic mass, atomic number, nucleus
- 20. Multiple Choice
The element Barium (Ba) is made of particles with different atomic charges. Barium has how many neutrons located in it?
80 Neutrons
81 Neutrons
137 Neutrons
56 Neutrons
- 21. Multiple Choice
What is the mass number for this element?
12
8
7
6
- 22. Multiple Choice
How many Neutrons are in this element?
12
8
7
6
- 23. Multiple Choice
How many electrons are in this element?
39
19
20
21
- 24. Multiple Choice
How many neutrons are in this element?
39
19
20
40
- 25. Multiple Choice
An element has the mass number 12 and atomic number 6. The number of neutrons in it is:
6
10
4
8
- 26. Multiple Choice
How many neutrons does the element with atomic number 6 contain? (tap to enlarge the image)
6
7
14
8
- 27. Multiple Choice
How many neutrons does an atom of Neon have? (Look at your periodic table in your notebook)
12
10
22
20
- 28. Multiple Choice
If an atom has 10 electrons, how many protons does it have?
0
1
10
5
- 29. Multiple Choice
How many electrons are in an atom with an atomic number of 50?
5
8
50
2
- 30. Multiple Choice
An atom of Carbon has ________ electrons and _________ neutrons
13, 13
6, 7
7, 7
6, 6
- 31. Multiple ChoiceWhat is the atomic number of Nickel? (enlarge the periodic table)110284678
- 32. Multiple ChoiceHow many protons are in a sodium atom? (tap to enlarge the periodic table)Sodium has 1 proton.Sodium has 3 protons.Sodium has 11 protons
- 33. Multiple ChoiceAn element has the mass number 12 and atomic number 6. The number of neutrons in it is:61048
- 34. Multiple ChoiceIf an atom has 10 electrons, how many protons does it have?01105
- 35. Multiple ChoiceWhat is the mass number of this atom?9101927
- 36. Multiple ChoiceWhat is the mass number of this atom?1234
- 37. Multiple ChoiceAn element with a mass number of 11 and an atomic number of 5 has how many neutrons?115616
- 38. Multiple ChoiceA phosphorus atom has 15 protons and 16 neutrons. What is the mass number?1516311
- 39. Multiple ChoiceAn atom of argon has 18 protons and 22 neutrons. How many electrons does it have?1822404
- 40. Multiple ChoiceWhat element has 20 protons? (Use your periodic table.)Potassium (K)Calcium (Ca)Nitrogen (N)Neon (Ne)
- 41. Multiple ChoiceWhat is the atomic number of this atom?246none of the above
- 42. Multiple ChoiceWhat is the atomic number of this atom?1347
- 43. Multiple Choice
An atom of silicon has 14 protons and 15 neutrons. What is the mass number of this atom of silicon?
14
15
29
28.085
- 44. Multiple Choice
What is the atomic number of Barium, Ba? (enlarge the periodic table)
20
38
56
88
- 45. Multiple ChoiceOutside the nucleus of an atom are theseprotonsneutronsquarkselectrons
- 46. Multiple Choice
An atom has 9 protons, 10 neutrons, and 9 electrons. What is the charge of the atom's nucleus?
+9
+10
-9
-10
- 47. Multiple Choice
What is the mass number of a Chlorine (Cl) atom that has 19 neutrons?
35
19
36
17
- 48. Multiple Choice
An atom of gold has the atomic number 79 and a mass number of 196. How many neutrons does this atom of gold have?
117
118
196
79
- Answer choicesTagsAnswer choicesTags