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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