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Ions And Electrons (Unit 7) Test
Test Description: Test prep for Ions and Electrons (Unit 7).
Instructions: Answer all questions to get your test result.
1) What do you call an atom that has lost or gained electrons?
A
metalloid
B
compound
C
ion
D
isotope
2) What charge does an electron have?
A
Neutral
B
Negative
C
Positive
D
Unknown
3) What do you call the vertical columns on the periodic table?
A
Groups
B
Compounds
C
Periods
D
Metalloids
4) What do the vertical columns represent on the periodic table?
A
If elements are Solid, liquids, gases
B
Number of electron energy levels
C
Number of valence electrons
D
If the elements are metals or nonmetals
5) What do you call the horizontal rows on the periodic table?
A
Periods
B
Compounds
C
Families
D
Groups
6) What do the horizontal rows on the periodic table represent?
A
Number of valence electrons
B
Atomic masses
C
Number of electron energy levels
D
Type of matter of the elements
7) How many valence electrons do the alkali earth metals have?
A
2
B
3
C
1
D
4
8) How many valence electrons does the nitrogen family have?
A
5
B
7
C
2
D
3
9) What is the oxidation number (the charge) of a Calcium ion?
A
1+
B
4+
C
2+
D
3+
10) How many electrons does a Al 3+ ion have?
A
16
B
13
C
10
D
8
11) How many electron energy levels (rings) does a sulfur Bohr diagram have?
A
3
B
1
C
4
D
2
12) If an atom has gained an electron it is called?
A
Anion
B
Cation
C
Isotope
D
Compound
13) If an atom has lost an electron(s) it is called?
A
Cation
B
Isotope
C
Compound
D
Anion
14) How many electrons does a neutral atom of Silicon have?
A
10
B
14
C
18
D
28
15) How many energy levels (rings) does a Bohr diagram of Iodine have?
A
3
B
4
C
2
D
5
16) What is the oxidation number (charge) of a selenium ion?
A
2+
B
1+
C
1-
D
2-
17) How many electrons does an anion of Selenium posses?
A
36
B
79
C
34
D
78
18) What charge does a proton posses?
A
Negative
B
Postive
C
Unknown
D
Neutral
19) The ________________ of an atom is the number of protons an atom possesses.
A
Oxidation Number (Charge)
B
Atomic Number
C
Isotope
D
Atomic Mass
20) The electron cloud is where you would find what particle(s)?
A
Electron
B
Proton
C
Nucleus
D
Neutron
*select an answer for all questions
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