Semester 1: Review Flashcard

Atom
A (an) is the basic unit of matter.
Neutron
Particle in the nucleus of an atom that has zero charge.
Electron
Particle in the nucleus of an atom that has a negative charge.
Proton
Particle in the nucleus of an atom that has positive charge.
Protons + Neutrons
The mass number of an individual isotope.
Atomic Number
The number of protons in an element is also the ___________ ______ of the element.
The electromagnetic
The __________ force holds the
electron(s)in the atom.
Radioactivity
the spontaneous decay of an atom into another isotope of the same or different element.
Alpha and Beta particle and Gamma radiation
The three types of radioactive decay.
Chemistry
The central science, the study of matter.
The proton
An atom’s identity comes from which subatomic particle?
Dmitri Mendeleev
The first periodic table was developed by…
The outmost electrons
Valence electrons are…
Hypothesis
In the scientific method, an investigation uses methods of control to test a(an) …
Physical
Is density a chemical of physical property of matter?
Chemical
Baking cookies is a __________change.
Physical
Breaking glass is a __________change.
Conclusion
What is the last step of the scientific method?
D = m / V
The formula for density
Ionic bonds
Bonds that normally form between a metal and a non-metal.
Covalent bonds
Bonds that normally form between non-metals and non-metals.
Deposition
What is the phase change called from gas to solid?
Sublimation
What is the phase change called from solid to gas?
ZERO
What is the “net” charge on an ionic compound?
Cations (+) and Anions (-)
Binary ionic compounds consist of two elements called…
Cation, polyatomic anion
With ternary ionic compounds the _____ is followed by the ___________.
Molecular or covalent compounds
What are compounds formed by non-metals are called?
Lavoisier
Who is credited with the Law of Conservation of Mass?
Coefficients, subscripts
When balancing a chemical equation ____can be changed but the _____can never be changed.
Reactant(s)
What is (are) the chemical(s) of the left side of a equation called?
Products
What is (are) the chemical(s) of the right side of a equation called?
Yields
What does the arrow (–>) between the left and right side of a chemical equation mean?
Hydrogen, nitrogen, oxygen, chlorine, bromine, fluorine, iodine
What are the seven diatomic elements?
Solid, liquid, gas, and plasma
What are the four states of matter?
Energy of motion and forces of attraction of matter
What is the kinetic molecular theory?
Temperature
What is the average kinetic energy of a substance measured in?
1, 2, 2
Fill-in the coefficients of the following equation. __ H2 + __ O 2 –> __ H2 O
Synthesis
What type of chemical reaction is the Hydrogen plus Oxygen which produces water?
1, 2, 1

Fill-in the coefficients of the following equation.

 

__ Fe + __ HCl –> __ FeCl2 + __ H2

Single replacement
What type of chemical reaction is the Iron plus Hydrochloric acid that produces Iron chloride and hydrogen gas?

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