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WorksheetsLT 1.3 Test Review
Total questions: 20
Worksheet time: 10mins
The smallest whole piece of a substance
atom
electron
proton
shell
Subpart of an atom with a positive charge
proton
neutron
electron
element
Where protons and neutrons are located
atom's nucleus
atom's electron cloud of shells
atom's edge
difference between atoms and molecules
molecules are made of individual atoms
atoms are made of individual molecules
there is no difference
In the molecule 3H2O, how many hydrogen atoms are present?
6
2
3
1
In the molecule 6NaOH, how many oxygen atoms are present?
6
1
18
5
How many TOTAL atoms exist in the molecule CO2?
1
2
3
6
How many TOTAL atoms exist in the formula 5H2O2?
2
5
4
20
Columns on the Periodic Table of Elements shows us...
the number of electron shells present in the electron cloud
the number of valence electrons
the number of protons
the number of atoms in a molecule
How many valence electrons exist in this atom?
3
7
17
35
Could an atom of fluorine (F) and an atom of aluminum (Al) bond?
no, because they are on different rows
no, because their valence electrons combined will not equal 8
yes, because they both have valence electrons
yes, because they both need to share exactly 4 electrons
What do neon (Ne) and argon (Ar) have in common?
both have two electron shells
both have full valence shells
both will bond with any atom
both will combine only with helium (He)
This is an image of
one molecule containing 4 atoms
one atom containing 4 molecules
one element containing 4 molecules
one molecule containing 4 elements
This is a model of glucose, a type of sugar. Its chemical formula is C6H12O6. How many TOTAL atoms are in this one molecule?
6
12
24
cannot be determined
Based its location on the Periodic Table of Elements, silicon (Si) has
4 shells and 3 valence electrons
3 shells and 4 valence electrons
3 shells and 3 valence electrons
4 shells and 4 valence electrons
Which subpart of the atom is responsible for bonding with other atoms?
neutrons
protons
electrons
all of the above
Which subpart of the atom is responsible for determining what the substance is?
neutron
proton
electron
all of the above
In this model of citric acid, what do the lines represent?
number of protons shared
number of bonds formed
number of electron shells
type of atoms in the compound
In this model of citric acid, how many different elements are included?
3
21
23
12
Based on its location on the Periodic Table, which statement about potassium (K) is true?
potassium has 1 electron shell
potassium has 1 proton
potassium has 1 valence electron
potassium has 1 bonding partner: krypton (Kr)
