Science Knowledge
Atoms and Elements
The Periodic Table
Chemical Reactions
Bonding and Naming
100
Multiple measurements that are close to one another.
What is precision?
100
This subatomic particle has a negative charge.
What is an electron?
100
These are represented by rows on the periodic table.
What is a period?
100
Matter can neither be created or destroyed.
What is the conservation of mass?
100
A bond formed between two non-metal elements
What is a covalent bond?
200
Multiple measurements that are close to the target measurement.
What is accuracy?
200
This subatomic particle has a neutral charge.
What is a neutron?
200
Represents the number of protons in the nucleus of an atom.
What is the atomic number?
200
The bonds in compounds are broken and atoms are rearranged, creating new bonds, and new compounds.
What is a chemical reaction?
200
A bond formed between a metal and a non-metal.
What is an ionic bond?
300
The measurement of the mass of an object per unit volume.
What is density?
300
These subatomic particles are located with nucleus of the atom and each weigh 1 amu.
Where are the protons and neutrons located within an atom?
300
A set of elements with the same number of valence electrons and similar chemical and physical properties.
What is a group?
300
It is represented by the rule element + compound becomes element + compound.
What is a single displacement reaction?
300
Electrons are transferred from one atom to another in this type of bond.
What is an ionic bond?
400
A proposed answer to a scientific question based upon background knowledge and observation.
What is a hypothesis?
400
They equal each other in an element but not in an ion.
How are the number of protons and electrons related to one another?
400
Multiple variants of a particular chemical element that differ in the number of neutrons but not in the number of protons.
What is an isotope?
400
The only products formed are carbon dioxide and water.
What is a combustion reaction?
400
This structure shows the number of valence electrons an elements has in its outermost shell.
What is a Lewis Dot structure?
500
The final step is to communicate results with colleagues and the scientific community.
What is the scientific method?
500
It is found by subtracting the atomic number from the atomic mass.
What is the number of neutrons in an element?
500
Developed by Dmitri Mendeleev in 1869, it states when the elements are arranged in order of increasing atomic mass, certain sets of chemical properties recur periodically.
What is the periodic law?
500
A salt and water are formed by this process of combining an acid with a base.
What is neutralization?
500
These are only used when naming covalent compounds to describe the number of particular atoms present.
What are prefixes?
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