By Min Hyung Park
Question 1
What are isotopes?
A. A fancy word for elementsB. An element with the same number of protons but different numbers of neutronsC. The same element with different amount of protonsD. The same element with different amount of electrons
Answer to Question 1What are isotopes?
The answer is B. Isotopes of an element have the same number of protons but different numbers of neutrons.
Question 2What is an ion?
A. An atom or molecule that lost or gained one or more electronsB. An atom or molecule that lost its nucleusC. An atom or molecule that lost or gained one or more neutronsD. An atom or molecule that gained power
Answer to Question 2
What is an ion?
The answer is A. An ion is an atom or molecule which has lost or gained one or more electrons. When it has gained an electron the atom/molecule will become positively charged. When it has lost an electron the atom/molecule will become negatively charged.
Question 3A.
What is the atomic weight?
1.A2.B3.C4.D
B.
C.
D.
Answer to Question 3A.
The answer is D
1.A= Atomic Number2.B= Element Symbol3.C= Element Name4.D= Atomic Weight
B.
C.
D.
Question 4
Which of the following families does Neon fall into?
A. Alkaline Earth MetalsB. Transition MetalsC. Noble GasesD. None of the above
Answer to Question 4
Which of the following families does Neon fall into?
The Answer is C. Neon falls into the family of Noble Gases, because it fits into the properties of Noble Gases. Odorless, colorless, and low chemical reactivity.
NEON
Question 5
What makes up an atom?
A. Neutrons, Protons, ElectronsB. Neuroses, Platens, ElectrodesC. Molecule, Neuron, MassD. Isotopes, Half-life, Symbols
Answer to Question 5
What makes up an atom?
The answer is A. Neutrons, Protons, Electrons
Question 6
What do you get if you mix 2 hydrogen with 2 oxygen?
A. Hydrogen Oxide B. Hydrogen Peroxide C. Oxygen HydroxideD. Oxide Hydroxide
Answer to Question 6
If you mix 2 hydrogen with 2 oxygen you get?
The answer is A. Hydrogen Oxide. Hydrogen’s chemical formula is H2O2 .
Question 7
If an atom has a neutral charge, then there are an equal amount of
A. Protons and NeutronsB. Protons and Electrons C. Neutrons and Electrons D. Ions and Half-life
Answer to Question 7
If an atom has a neutral charge, then there are an equal amount of
The answer is B. Protons and Electrons. Protons give off a positive charge and electrons a negative charge. To get a neutral charge you would need equal amounts.
Question 8
The atomic number is equal to the amount of:
A. NeutronsB. ElectronsC. ProtonsD. Neutrons + Electrons + Protons
Answer to Question 8
The atomic number is equal to the amount of:
The answer is C. Protons.
Question 9
“Little Boy” the atomic bomb dropped on Nagasaki used uranium-235. How many
protons and neutrons does it have?
A. Protons: 92 Neutrons: 235B. Protons: 92 Neutrons: 143C. Protons: 92 Neutrons: 162D. Protons: 92 Neutrons: 178
Answer to Question 9
“Little Boy” the atomic bomb dropped on Nagasaki used uranium-235. How many
protons and neutrons does it have?
The answer is B. Protons: 92 Neutrons: 143. Uranium-235 is an isotope. Isotopes are elements with same # of protons, different # of neutrons. (235-92) to get # of neutrons
Question 10
The chemical formula for Copper Sulfate is?
A. CuSo4
B. So4CuC. CsUo4
D. Ou4Sc
Answer to Question 10
The chemical formula for Copper Sulfate is?
The answer is A. CuSo4 Cu stands for copper and So for sulfur.
Question 11Photosynthesis
6H2O+6CO2+Light Energy=______+6O2
What goes in the ____? (Hint: Chemical Formula of Glucose)
A. C6H12O6
B. O6H12C6
C. C6O6H12
D. H12C6O6
Answer to Question 11
6H2O+6CO2+Light Energy=______+6O2
The answer is A. C6H12O6 The chemical formula of Glucose is C6H12O6
Question 12
Which of the following does not fit the Alkaline Earth Metal family?
A. MagnesiumB. CalciumC. RadiumD. Potassium
Answer to Question 12
Which of the following does not fit the Alkaline Earth Metal family?
The answer is D. Potassium A.~C. fits into the Alkaline Earth Metal family, Potassium goes into Alkali Metals.
Question 13
Elements 112 above do not have a specific name why?
A. Scientists didn’t give it a nameB. It is a temporary name until a specific name is givenC. The element doesn’t want a nameD. The element does not exist
Answer to Question 13
Elements 112 above do not have a specific name why?
The answer is B. They are given temporary names until a specific name is given.
Question 14
The Lanthanum series and Actinium Series are a series because:
A. They want to be a seriesB. They have similar chemical similaritiesC. They have funny namesD. Scientists wanted to make a series
Answer to Question 14
The Lanthanum series and Actinium Series are a series because:
The answer is B. They have similar chemical similarities. Lanthanum series most elements are trivalent. Actinium Series they are all bivalent.
Question 15
The atomic mass of a atom is the sum of its protons, neutrons and electrons.
Isotopes do NOT have the same atomic mass as the original element. True or
False?
• True• False
Answer to Question 15
The atomic mass of a atom is the sum of its protons, neutrons and electrons.
Isotopes do NOT have the same atomic mass as the original element. True or
False?
The answer is true. The atomic mass would be different due to the different amount of neutrons in the atom.
Question 16
The chemical formula for caffeine is C8H10N4O2
How many elements are in caffeine?
A. 25B. 24C. 26D. 27
Answer to Question 16
The chemical formula for caffeine is C8H10N4O2
How many elements are in caffeine?
The answer is B. 24 To get this answer SIMPLY add (8+10+4+2).
Question 17
If matter exists does anti-matter exist?True or False?
• True• False
Answer to Question 17
If matter exists does anti-matter exist?True or False?
The answer is True. Anti-matter does exist.
Question 18
Name 3 elements in the Metalloid Family
_______________ _____________ _________
Answer to Question 18
Name 3 elements in the Metalloid Family
The following elements are part of the Metalloid Family: Boron (B), Silicon (Si), Germanium (Ge), Arsenic (As), Antimony (Sb), Tellurium (Te), Polonium (Po)
Question 19
How many elements naturally occur on Earth out of 117 elements?
A. 92B. 100C. 87D. 95
Answer to Question 19
How many elements naturally occur on Earth out of 117 elements?
The answer is A. 92
Question 20
The invention of the periodic table is generally credited to
A. Albert Einstein B. Dmitri Ivanovich Mendeleev C. Isaac NewtonD. Alfred Bernhard Nobel
Answer to Question 20
The invention of the periodic table is generally credited to
The answer is B. Dmitri Ivanovich Mendeleev.
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