Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
100
Is burning wood an example of a physical change, chemical change, physical property, or chemical property?
Physical Change
100
What are the three subatomic particles of the atom?
Protons, Neutrons, and Electrons
100
What are the three forms of radioactive decay?
Alpha, Beta, and Gamma.
100
How many periods and groups are there in the periodic table?
There are 7 periods and 18 groups.
100
Are cations positively or negatively charged?
Positive
200
What is density an example of?
A physical property
200
Who is John Dalton and what did he contribute?
He was an English chemist who contributed the atomic theory.
200
What's the symbol for beta decay?
o e -1
200
What is group 18 named?
Noble Gases
200
What is the difference between non-polar covalent and polar covalent bonds?
Non-polar covalent bonds are when electrons are shared equally between the atoms. Polar covalent bonds are when electrons are shared unequally.
300
What's the difference between a chemical property and physical property?
The difference between a chemical property and a physical property is that a physical property is how something looks. A chemical property is describing the materials in reactions.
300
How do you find the number of neutrons in an atom?
You subtract the number of protons from the mass number.
300
Does alpha decay have a low, high, or medium penetration power?
Low
300
What's the octet rule?
The octet rule is when each element tends to form compounds based on the easiest way to gain 8 valence electrons.
300
Where are pi bonds usually found?
Above or below the nucleus.
400
What's the difference between a chemical change and a physical change?
The difference between a chemical change and a physical change is that a chemical change is when a reaction forms a substance. A physical change is when the reaction does not change the chemical makeup of the substance.
400
What is Dalton's atomic theory?
1. All elements are composed of tiny indivisible particles called atoms. 2. Atoms of the same element are identical. 3. Atoms of different elements can physically mix together or combine chemically in whole number ratios. 4. Chemical reactions occur when atoms are separated, joined, or rearranged.
400
What's the difference between fission and fusion?
Fission is when the nucleus of an atom splits to form a more stable nucleus. Fusion is the combining of smaller nuclei into larger ones.
400
What is ionization energy? Does it decrease or increase across a period? Does it decrease or increase down a group?
Ionization energy is the energy required to remove an electron from an atom. It increases across a period and decreases down a group.
400
What determines polarity?
The electronegativity in the bond.
500
Is a burning candle an example of a physical change or a chemical change?
TRICK QUESTION! It is both. The physical changes in the candle is that the wax melts, then freezes back into solid state again, and the chemical changes are that the wick burns, soot, and smoke.
500
Explain Rutherford's Gold Foil Experiment.
He aimed a beam of alpha particles at a sheet of gold foil surrounded by a fluorescent screen. This showed that particles passed through the foil without any deflection.
500
Does the zigzag line cross metals or nonmetals?
TRICK QUESTION! They cross both.
500
What is the ionic and covalent bond name for P2O5?
Ionic: Phosphorous Oxide Covalent: Di phosphorous Pentoxide
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