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