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Physical Science Review 5.2
Test Description: Ionic Bonds
Instructions: Answer all questions to get your test result.
1) Ions are not atoms that
A
share electrons
B
gain electrons
C
have a charge
D
lose electrons
2) what kind of atom is phosphate, (PO3)2-?
A
polyatomic ion
B
charged ion
C
ion
D
monoatomic ion
3) What is the charge of the phosphate ion, (PO3)2-?
A
3
B
-3
C
2
D
-2
4) When an atom loses an electron
A
it loses a positive charge and becomes a negative ion
B
it loses a negative charge and become a positive ion.
C
it loses a positive charge and becomes a positive ion
D
it loses a negative charge and becomes a negative ion
5) What is the charge on a hydronium ion (H30)+
A
3
B
-1
C
-3
D
1
6) ionic compounds are made of
A
2 metals
B
2 nonmetals
C
none of the choices
D
a metal and a nonmetal
7) What is the chemical formula of Rubidium Selenide?
A
Rb6Se
B
RbSe2
C
Rb2Se
D
RbSe6
8) What is the name of BF3
A
Boron fluoron
B
Boride Fluorine
C
Boron fluorine
D
Boron fluoride
9) Ionic bonds are strong so
A
ionic compounds have lower melting points
B
ionic compounds have higher melting points
C
it takes more energy to break them
D
2 of the choices
10) ionic compounds can ___________________ when _________________
A
not conduct electricity; dissolved or melted
B
2 of the choices
C
conduct electricity; solid
D
conduct electricity; dissolved or melted
*select an answer for all questions
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