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WorksheetsChemical Bonding and Counting Atoms
Total questions: 44
Worksheet time: 36mins
How many Carbon atoms are in this compound: C12H22O11
12
22
11
1
How many Oxygen atoms are in this compound: C12H22O11
12
22
11
1
What are chemical bonds?
electrical forces that hold atoms together
electrons that are glued together
areas between protons
the force of gravity on an atom
What is a valence electron?
an electron that is found in the outermost shell of an atom.
an electron found in the innermost shell of an atom.
an electron found in the middle shell.
A covalent bond forms when atoms ___________ electrons.
gain
share
increase
transfer
Which type of bond moves by giving up or transfers electron(s) from one atom to another?
Covalent
chlorine
hydrogen
How many molecules are in this chemical compound? 4 CO ?
4
1
2
0
Ionic bonding occurs between ____ and _____.
nonmetal and nonmetal
metal and nonmetal
metal and metal
Depends on the situation
Predict the bond between Mg and Cl
covalent
ionic
metallic
none of the above
Is H2O2 an element or a compound? We used this in lab and it is the chemical formula for Hydrogen Peroxide.
element
compound
How many different elements are in the C6H12O6
3
6
12
24
How many total atoms are in C6H1206
3
6
12
24
What type of bond forms CaF2 ?
covalent bond
ionic bond
no answer is correct
all answers are correct
In order for a chemical reaction to occur,
there must be an explosion or fire
bubbling or gas must be produced
a new substance must be formed
the substance must turn color
Why do atoms bond?
They typically don't bond
To add or take away energy levels
To have a full valance shell and be stable.
To have a full inner shell
How many Carbon atoms are in this compound: 2C12H22O11
24
12
11
1
How many atoms are there in this substance? 2Fe 2
2
4
1
What type of compound is CH4
ionic compound
covalent compound
metallic compound
What type of compound is NaCl?
ionic compound
covalent compound
What type of bond makes H2
covalent bond
ionic bond
Is H2O2 an element or a compound?
element
compound
An atom that gains or loses an electron becomes
an isotope
a new element
an ion
a molecule
When an atom gains an electron it becomes
negatively charged and is a anion
positively charged and is a cation
neutral and pure
Ionic bonds happen when valence electrons are
shared
too heavy
transferred (given up or accepted)
Valence electrons are
neutral (no charge)
found in the outer most energy level of the atom
equal to the number of protons
Which type of bond occurs between non metals?
covalent bonds
ionic bonds
metallic bonds
all types of bonds
What is the name of the cute talking Christmas Tree in our classroom?
Chicken Tree
Lucky Tree
Douglas Fir
Mr. Burd
How many valence electrons does Oxygen have?
0
16
6
8
How many different elements are in the C6H12O6
3
6
12
24
What is the charge of an aluminum ion that has 13 protons and 10 electrons?
3+
3 -
no charge
Most elements bond to create compounds because
their outer electron level is full
they are unstable
they are positively charged
The best type of Tree is a Chemistree aka Chemistry Tree!
True
False
H2SO4
What elements are represented in this chemical formula? Fe2O3
Iron, Oxygen
Francium, Europium, Oxygen
Ferrium, Oxygen
Berylium, Oxygen
Coefficients in chemical formulas...
are found at the beginning of a formula and multiply just the first atom
are found at the end of a formula and multiply EVERYTHING!
are found at the end of a formula and multiply only elements inside the parentheses.
are found at the beginning of a formula and multiply EVERYTHING!
Can noble gasses bond with other elements?
