1. Chemical Review
Grade:
7th
Subject:
Science
Date:
2015

2. What is an element made up of?1
What is an element made up of? A
Compounds B
Mixtures C
Atoms D
Substances

3. 2
If an element has an atomic mass of 15 and atomic number of 7 then how many neutrons are there? A 15 B 22 C 7 D 8

4. 3
If an element has an atomic mass of 27 and atomic number of 13 then how many protons are there? A 15 B 8 C 22 D 13

5. 4
If an element has 12 neutrons and 10 protons, then what is the atomic mass? A 12 B 8 C 22 D 10

6. 5
What does the “group/family” number tell us about an element? A
The number of total electrons B
The number of valence electrons C
How many shells it has D
How many energy levels it has

7. 6
A capital letter or a combination of a capital letter and a small letter that is used to represent an element is called __ A
Chemical formula B
Electron cloud C
Chemical symbol D
Isotopes

8. 7
What are the horizontal rows of elements called? A
Groups/families B
Periods C
Quarks D
Table

9. 8
What are the vertical columns of the Periodic Table called? A
Groups/families B
Periods C
Quarks D
Table

10. 9
The number of protons in an atom is the_____. A
Mass number B
Average atomic mass C
Atomic number D
Isotopes

11. 10
What is the center of an atom where protons and neutrons are located called? A
Nucleus B
Electron C
Compound D
Metalloids

12. 11
The Periodic Table is arranged by___. A
Atomic mass B
Periods C
Atomic number D
Groups/families

13. 12
Each energy level of an atom has a maximum of ____ it can hold. A
Neutrons B
Protons C
Quarks D
Electrons

14. 13
The chart that shows the classification of 
elements is called the: A
Atomic number B
Periodic Table C
Average atomic mass D
Mass number

15. 14
In the current model of the atom, where are the electrons located. A
Metalloids B
Nucleus C
Atomic model D
Electron cloud

16. 15
These are elements in groups 3 through 12 of the periodic table. A
Transition metals B
Metalloid C
Noble gases D
Radioactive element

17. 16
Which group/family makes up the alkali metals? A
Group 1 B
Group 2 C
Group 3 D
Group 4

18. 17
Which group/family makes up the alkali earth metals? A
Group 1 B
Group 2 C
Group 3 D
Group 4

19. Which group/family makes up the halogens?18 A
Group 1 B
Group 3 C
Group 5 D
Group 7

20. 19
Which group/family makes up the noble gases? A
Group 2 B
Group 4 C
Group 6 D
Group 8

21. 20
In which group does sodium belong? A
Metal B
Nonmetal C
Metalloid D
None of the above

22. 21
In which group does Krypton belong? A
Metal B
Nonmetal C
Metalloid D
None of the above

23. 22
In which group does Silicon (Si) belong? A
Metal B
Nonmetal C
Metalloid D
None of the above

24. 23
How many valance electrons does Boron (B) have? A 2 B 5 C 3 D 13

25. 24
How many valance electrons does Sodium (Na) have? A 1 B 2 C 3 D 11

26. 25
How many valance electrons does Carbon (C) have? A 6 B 4 C 13 D 3

27. 26
How many valance electrons does Argon (Ar) have? A 18 B 8 C 3 D 7

28. 27
What element is this? A
Neon B
Fluorine
Sodium C
D Magnesium

29. 28
What element is this? A
Neon B
Krypton C
Argon
D Potassium

30. Answer Key
1. C C B
2. D D C
3. D B C
4. C D A
5. B A B
6. C A B
7. B 17.B C
8. A 18.D B
9. C 19.D
10. A 20.A