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WorksheetsChemistry Common Assessment Review
Total questions: 15
Worksheet time: 8mins
What are the subatomic particles?
molecule, atom and compound
proton, neutron and electron
nucleus and electron cloud
Cells, tissues and organs
How many bonds can this element make?
7
8
1
0
This diagram is an example of a Bohr Model.
True
False
In this equation, how many Hydrogen atoms are in the products?
2
6
0
4
Is Oxygen balanced in this equation?
Yes
No
An atom is an ion if it:
has no neutrons
has no protons
has unequal protons and electrons
has unequal protons and neutrons
What is the atomic number of Lithium?
3
6.941
7
2
How many neutrons in an atom of Lithium?
3
7
4
0
What would you call an atom of Lithium with 4 electrons?
An isotope
An ion
An atom with a positive charge
Lithium cannot have 4 electrons
In this example showing Lithium and Nitrogen, how many atoms of Lithium would have to bond with Nitrogen to make it stable (or "happy").
1
8
7
3
What two subatomic particles are in the nucleus of an atom?
Protons and Neutrons
3 and 5
Protons and electrons
The positives
The electrons on the outside of an atom are called:
The shield force
The valence electrons
The nuclear electrons
The Hawk Force
What group does this show on the Periodic Table?
Halogens
Halitosis
Noble Gases
Peasant Gases
Why won't these elements bond with other elements?
They already have a full outer shell.
They have no room for more electrons.
They are stable and happy.
All of the above.
In this equation, how many atoms of the element CO are in the reactants?
3
CO is not an element
1
2
