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WorksheetsAtoms, elements, and bonding study guide part 2
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
Which of the following describes an ionic bond?
a)
does not conduct electricity
b)
has a low melting point
c)
between nonmetals
d)
between metals and non-metals
2.
Label the atom
a)
a=neutron, b=protons , c=electrons
b)
a=valence electrons, b=neutrons, c=protons
c)
a=electrons, b=protons, c=neutrons
d)
a= electrons, b=neutrons, c=protons
3.
How many valence electrons does oxygen have?
a)
8
b)
16
c)
6
d)
15.999
4.
Is this the electron dot diagram for oxygen?
a)
Yes
b)
No it should have more electrons
c)
No it should have less electrons
d)
none of the choices
5.
What is the ionic charge for lithium (Li)?
a)
+2
b)
+3
c)
+1
d)
-3
6.
What is the ionic charge for sulfur (S)?
a)
-3
b)
-1
c)
-2
d)
0
7.
If Lithium (Li) has +1 charge and Sulfur(S) has a -2 charge what is the chemical formula?
a)
Li2 S
b)
LiS
c)
LiS2
d)
none of the choices
8.
Using CER, are valence electrons important? essay
a)
My claim is valence electrons are important.
b)
My evidence is that valence electrons are involved in chemical bonding and are revealed by the group number.
c)
I know this is true because we learned about the structure of atoms and how the electrons in the outer shell of an atom of an element bond with other electrons in the outer shell of an atom in other elements to create compounds and molecules.
d)
all of the choices
9.
Using CER, are ionic bonds and covalent bonds different? (essay)
a)
My claim is ionic bond and covalent bonds are different.
b)
My evidence is ionic bonds have high melting points, happen between metals & non-metals, and conduct electricity while covalent bonds happen between non-metals, have low melting point and do not conduct electricity.
c)
I know this is true because we learned that elements want to get with other elements to create bonds and maintain stability by obtaining the appropriate number of valence electrons needed. Most elements want to obtain 8 electrons to be stable according to the octet rule.
d)
all of the choices
10.
How do you word CER for your essay?
a)
C: My claim is
b)
E: My evidence is
c)
R: I know this is true because
d)
all of the choices
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