Mixture, Compounds And Atoms

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Mixture, Compounds And Atoms
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1. 
Atoms are composed of :
A.
B.
C.
2.  Separating funnel 
A.
B.
C.
3.  Which of the following particle has a positive charge?
A.
B.
C.
4.  A positive ion is a:
5.  Atoms ____ to have a filled outermost energy level
A.
B.
6.  Which of the following particle has no charge?
A.
B.
C.
7.  What is Filtration?
A.
B.
C.
8.  The first energy level is closest to the nucleus and can hold up to ____ electrons.
A.
B.
C.
9.  An impure substance made up of two or more elements or compounds both mechanically mixed into any proportion and can be further sub-divided by physical means is a
A.
B.
10.  What is Evaporation?
11.  A negative ion is a:
A.
B.
12.  Which particle orbits the nucleus?
A.
B.
C.
13.  Which of the following is a pure substance made up of one type of atoms?
A.
B.
C.
14.  What is paper chromotography?
15.  A pure substance made up of two or more elements chemically combined in a fixed proportion can be sub-divided by chemical means only is a
A.
B.
16.  The second energy level can hold up to ____ electrons.
A.
B.
C.
17.  Most atoms form bonds using only the electrons in their ____ energy level.
A.
B.
18.  Which of the following describes what happens when an atom becomes an ion with a 2– charge?
A.
B.
C.
19.  This type of mixture has a composition that is not uniform.
A.
B.
20.  Which bond exchanges electrons?
A.
B.
21.  What is Distillation?
A.
B.
C.
22.  This is the solid remaining in filter paper after filtration.
23.  Mixtures can be separated by:
24.  This is the liquid which passes through filter paper during filtration.
A.
B.
25.  This type of mixture has the same composition through out.
A.
B.
26.  Compounds can be separated by:
A.
B.
27.  Atoms bond by ____ electrons.
A.
B.
C.
D.
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