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WorksheetsGeneral Chemistry 1 (Final Long Test)
Total questions: 35
Worksheet time: 18mins
Who proposed the Quantum Mechanical Model of the atom that describes electrons in terms of probabilities rather than fixed orbits?
Erwin Schrödinger
J.J. Thomson
Niels Bohr
John Dalton
Noble gases are stable because they have how many electrons in their outermost shell?
4
8
6
10
What quantum number indicates the main energy level or shell of an electron?
Spin quantum number (ms)
Magnetic quantum number (ml)
Principal quantum number (n)
Azimuthal quantum number (l)
What principle states that the exact position and momentum of an electron cannot be known at the same time?
Pauli Exclusion Principle
Quantum Number Principle
Aufbau Principle
Uncertainty Principle
Which of the following trends generally increases as you move down a group in the periodic table?
Atomic radius
Electronegativity
Electron Affinity
Ionization energy
What rule states that atoms tend to gain, lose, or share electrons to have eight in their valence shell?
Pauli Principle
Aufbau Rule
Octet Rule
Hund’s Rule
Which rule explains why hydrogen is stable with only two electrons as it bonded into other elements?
Octet Rule
Duet Rule
Hund’s Rule
Quartet Rule
What type of elements are mainly found in all organic compounds?
Sodium and chlorine
Carbon and hydrogen
Iron and oxygen
Calcium and sulfur
Which correctly compares bond strength among single, double, and triple bonds?
Triple < Double < Single
Depends on each element
All are equal
Single < Double < Triple
Among the biomolecules, what molecule is considered to be the most significant to all body processes?
Carbohydrates
Lipids
Nucleic acids
Proteins
Why does magnesium form a +2 ion in magnesium oxide (MgO) ionic bonding? To achieve stability, magnesium must…
gain two valence electrons
transfer one electron only
lose two valence electrons
share electrons with oxygen
What occurs when small organic molecules (monomers) chemically join together? They…
react and become active monomer groups
combine to form a uniform monomers
connect to form long-chain polymers
separate and turn into basic elements
Which sequence correctly shows the chronological order of the atomic models?
Bohr → Thomson → Rutherford → Dalton
Dalton → Thomson → Rutherford → Bohr
Rutherford → Thomson → Bohr → Dalton
Thomson → Bohr → Dalton→ Rutherford
What does a Lewis dot structure of an ionic compound show?
shared pairs of electrons between nonmetals
transfer of electrons from metal to nonmetal
transfer of electrons from nonmetal to metal
shared pairs of electrons between metals
As you move from left to right across a period, how do atomic size and ionization energy change?
Atomic size decreases, ionization energy increases
Both atomic size and ionization energy increase
Both atomic size and ionization energy decrease
Atomic size increases, ionization energy decreases
Buldak wants to know the maximum number of electrons that can occupy a shell. How will he do it? By applying the formula…
n = Z - A, where Z is the mass and A is the shell number
n2, where n is the energy level
2n2, where n is the shell number
n = A - Z, where Z is the shell number and A is the mass
How is the electron configuration of sodium (Na, atomic number 11) written correctly?
1s² 2s² 2p⁶ 3s²
1s² 2s² 2p⁶ 3p¹
1s² 2s² 2p⁵ 3s²
1s² 2s² 2p⁶ 3s¹
How will you write the exact quantum numbers of the element Bromine (Br)?
n=4; l=1; ml=0; ms=-½
n=4; l=0; ml=-1 ms=-½
n=4; l=1; ml=1; ms=+½
n=4; l=0; ml=0; ms=+½
Yayay is observing the reaction between calcium and fluorine, producing calcium fluoride (CaF2). She concluded that an ionic bonding has occurred in the reaction. How will she write the ionic compound?
[Ca–] [2F2+]
[Ca2–] [2F+]
[Ca+] [2F2–]
[Ca2+] [2F–]
Why is CH4 classified as a hydrocarbon? It…
has polar bonds
contains carbon and hydrogen
contains oxygen and carbon
has ionic bonds
Jay Sauce is asked to identify C₂H₂ as an alkyne. How will he do it? By recognizing that it contains…
single bond
double bond
four hydrogens per carbon
triple bond between carbons
Sam Puth has been fasting for 72 hours. She starts feeling dizzy, and the carbohydrates from her last meal are already used up. How will her body recover energy?
breaking down stored fats to produce needed energy
forming new carbohydrates directly from oxygen gas
converting vitamins quickly into glucose for energy
stopping metabolism until food intake happens again
Which of the following is the molecular formula of propene (propylene)?
C3H4
C4H8
C3H6
C4H10
Which among the biomolecules is considered the most significant for life processes?
Carbohydrates – main source of energy
Proteins – building blocks and enzymes of cells
Lipids – long-term energy storage molecules
Nucleic acids – carriers of genetic information
How will you determine the charge of the molecules formed if NaClO undergoes a decomposition reaction? It will be…
Na2+ and ClO2–
Na+ and ClO–
Na2– and ClO2+
Na– and ClO+
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
How will you arrange the following compounds: CH₄, C₂H₆, C₂H₄, C₂H₂ in increasing number of carbons and bonds?
CH₄ < C₂H₆ < C₂H₄ < C₂H₂
C₂H₂ < C₂H₄ < C₂H₆ < CH₄
CH₄ < C₂H₂ < C₂H₄ < C₂H₆
C₂H₆ < CH₄ < C₂H₄ < C₂H₂
Which of the following statements best describes Hund’s Rule?
Each orbital can hold a maximum of two electrons
No two electrons have the same quantum numbers
Electrons fill degenerate orbitals singly before pairing
Electrons occupy the lowest energy orbital first
Which of the following sets of elements shows the correct order of decreasing ionization energy?
Al > Mg > Ca > K
K > Ca > Mg > Al
Mg > Al > K > Ca
Ca > K > Mg > Al
