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WorksheetsSCIENCE 9 Q2 - SUMMATIVE TEST
Total questions: 60
Worksheet time: 45mins
The electrons on the outermost energy level are referred to as
electrostatic
Pauli electrons
Ernest electrons
valence electrons
Which explains the filling up of the orbital in the order of increasing energy?
Octet Rule
Hund’s Rule
Pauli’s Exclusion Principle
Aufbau's Principle
The negatively charged particles moving about in the outer part of the atoms.
protons
electrons
neutrons
nucleus
Which shows the correct order in the following atomic orbitals?
f orbital, d orbital, p orbital, s orbital
p orbital, f orbital, s orbital, d orbital
s orbital, d orbital, f orbital, p orbital
s orbital, p orbital, d orbital, f orbital
Who formulated the “Uncertainty Principle”?
Erwin Schrodinger
James Maxwell
Louise de Broglie
Werner Heisenberg
Which of the following postulates explain that no two electrons can have the same set of four quantum numbers?
Hund’s Rule
Aufbau principle
Dalton’s Atomic Theory
Pauli’s Exclusion Principle
What happens to the energy of an electron when it jumps from an outer to an inner orbit?
It is absorbed
It remains constant
It is emitted/released
It could either increase or decrease
The ground state electron configuration of Fe is
1s2 2s2 2p6 3s2 3p6 4s2 3d5
1s2 2s2 2p6 3s2 3p6 4s2 3d6
1s2 2s2 2p6 3s2 3p6 4s2 3d7
1s2 2s2 2p6 3s2 3p6 4s2 3d8
Which statement is NOT correct for an atom with an electron configuration of 1s2 2s2 2p6 3s2 3p5?
It has 17 electrons
The 3p orbitals are filled
It has 3 main energy levels
The 3s orbitals are filled
Which of the following energy levels can accommodate a maximum of 8 electrons?
1st energy level
2nd energy level
3rd energy level
4th energy level
How many electrons can the d orbital holds?
2
6
10
14
Which is the electron configuration of Fluorine?
1s2 2s2 2p6
1s2 2s2 2p5
1s2 3s2 2p3
1s1 2s2 2p6
It is the tendency of an atom to attract electrons.
Polarity
Ionic Bonding
Chemical Bonding
Electronegativity
Which type of compound results from the combination of metal and non-metal elements?
Ionic compounds
Covalent molecular compounds
Organic compounds
Acids and Bases
Which type of compounds result from the combination of two nonmetallic elements?
Ionic compounds
Covalent molecular compounds
Organic compounds
Acids and Bases
Which of the following example is ionic in nature?
CO2
H2O
NaCl
CO
Reactive metals are mostly found at the:
The right part of the periodic table
Left part of the periodic table
Middle of the periodic table
Lower part of the periodic table
Reactive non-metals are mostly funded at the:
The right part of the periodic table
Left part of the periodic table
Middle of the periodic table
In forming ionic bonds:
Electrons are shared by two metals
Electrons are transferred from non-metals to metals
Electrons are accepted by metals from non-metals
Electrons are released by metals and accepted by non-metals
Ionic bonds are formed between:
Two metals
Two nonmetals
Two nonreactive elements
Metals and nonmetals
A condition/rule that atoms tend to react to have a stable arrangement of 8 electrons in the outermost shell.
Lewis Rule
Octet Rule
Aufbau’s Rule
Bohr’s Rule
A convention illustrating an atom’s symbol surrounded by dots which represent the outermost electron/s or valence electron/s
Lewis Electron Dot Rule
Octet Rule
Aufbau’s Rule
Bohr’s Rule
Why is Aluminum used for making cooking utensils?
It is good conductor of heat.
It is sonorous.
It is malleable
It is ductile.
Mary wants to remove her nail polish. What must she use?
gasoline
vinegar
ethanol
acetone
What is the common uses of methane?
disinfectant
artificial ripening agent
fertilizer
fuel
Maria Paula wants to preserve a frog from her project in Biology class. What kind of compound should she use to preserve the said animal?
acetic acid
methyl alcohol
formaldehyde
acetone
Carbon atom forms how many bonds?
1
2
3
4
Which among the following shows that an atom is stable?
having 2 valence electrons
having 6 valence electrons
having 4 valence electrons
having 8 valence electrons
Which group in the periodic table contains the most stable elements?
group V-A
group VI-A
group VII-A
group VIII-A
Carbon can bond to _______?
H
N
O
all of these
A stable element (part of the noble gases) but has only 2 valence electrons.
Hydrogen
Helium
Carbon
Oxygen
Formed when atoms lose or gain valence electrons. They may be positively charged or negatively charged.
Ions
Valence Electron
Electron Dot Structure
Octet Rule
Least reactive of all known elements because they are already stable.
Noble Gases
Alkali Elements
Halogens
Non-Metals
Tend to form cations because they tend to lose electrons easily.
Metal
Non-metal
Metalloid
Halogens
Which of the following elements is the most stable?
C
Ne
I
Ru
Which of the following consists of carbon atoms?
graphite
diamond
fullerene
all of these
Which property is shared by most covalent compounds?
high melting point
high boiling point
low melting point
good conductor of electricity
Why can metals be hammered without breaking?
They are ductile
They are not brittle
They are malleable
Their particles are strong.
Which of the following best describes the difference between a cation and an anion?
Cations are metallic, and anions are gaseous.
Anions are positively charged, and cations are negatively charged.
Anions are negatively charged, and cations are positively charged.
Honey is applying something to the ball bearings of the wheels of the bicycle to lessen friction. Which of the following material do you think she is using?
vinegar
isopropyl alcohol
kerosene
lubricating oil
Which organic compound is used as cleaning agent?
gasoline
kerosene
LPG
ethyl alcohol
How many electrons are gained or lost by Magnesium and what is the charge on the ion that it forms?
loses 2 electrons to form a magnesium ion with a 2- charge
gains 2 electrons to form a magnesium ion with a 2- charge
loses 2 electrons to form a magnesium ion with a 2+ charge
gains 2 electrons to form a magnesium ion with a 2+ charge
A black material used in pencil.
Lead
Neon
Ink
Eraser
Which among the following is one of the hardest known substances?
Graphite
Diamond
Lead
Carbon
A behavior exhibited by certain chemical elements: these elements can exist in two forms or more different forms known as allotropes of that elements.
Isomers
Valency
Allotropy
Bonding
A gasoline boy was being scolded by his store manager for smoking in the vicinity of the gasoline station. Why do you think the manager scolded his employee?
because gasoline is volatile
because gasoline is flammable
because gasoline is viscous
none of the above
Which are TRUE about the use of isopropyl alcohol?
Cleaner
Fuel
Disinfectant
Pesticide
Michael needs to expel the dried up paint within the paint brush so that he may utilize it once more. What organic compound is used to expel the paint on the paint brush?
Acetic acid
Lubricating oil
Kerosene
Formaldehyde
Which hydrocarbon is commonly used in disposable lighters and in fuel canisters for gas camping stoves and lanterns?
Ethyne
Butane
Propene
Pentane
Formaldehyde is an aldehyde with the formula HCHO, a colorless gas with a pungent and irritating odor. Which of the following is NOT a use of formaldehyde?
Used to sterilized soil
Preservation of tissue specimens
Embalming bodies
Fermenting corn or molasses
Marcy's car stopped at the middle of the road. She found out that her car has ran out of fuel. Which compound must she buy?
kerosene
gasoline
lubricating
water
Which statement best describes inorganic compound?
Inorganic compounds are compounds do that not contain carbon and hydrogen.
Inorganic compounds are compounds that do not contain carbon atoms only.
Inorganic compounds are compounds that produced by living things.
Inorganic compounds are compounds that contain carbon and oxygen only.
Which of the following are the main compositions of organic compound?
carbon and hydrogen
carbon and oxygen
oxygen and hydrogen
carbon, hydrogen and oxygen
Why is the periodic table important?
It organizes elements by color
It helps predict chemical behavior
It lists elements alphabetically
It shows the size of atoms
In the periodic table, elements are arranged according to their
Atomic mass
Atomic number
Density
Melting point
What do we mean by stable configuration?
having 5 electrons in the outermost shell
having 8 electrons in the outermost shell
having 7 electrons in the outermost shell
Why do atoms tend to lose or gain electrons during chemical bonding?
to attain beauty
to attain stability
to become reactive
to attain malleability
What do you call the ion which carry positive charge in its atom?
Anions
Cations
Polyatomic ions
Polymers ion
What do you call the ion which carry negative charge in its atom?
Anions
Polyatomic ions
Cations
Polymers ion
What is the basis of Lewis Dot Structure?
Anions
Cations
Period Number
Valence Number
