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Science 9 Q2 Summative Test / Post Test
Quiz by Mary Grace Masongsong
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The spin quantum number of an electron can be thought of as describing
How many electrons from the outermost shell does a 4s orbital possess?
Which set of quantum numbers uniquely defines one of the electrons in an atomic orbital with n = 2 and l = 0?
What is the electron configuration for nitrogen, atomic number 7?
Which of these d-orbitals contains both paired and unpaired electrons?
Boron belongs to Group 13. How many valence electrons does Boron have?
Non-polar covalent bonding involves the equal sharing of electrons between atoms to attain stability. Which of the following compounds will have non-polar covalent bonding?
Electrical and thermal conductivity is one of the properties of compounds. Which of the following types of bonds will have a high electrical conductivity?
The following compounds are commonly found in nature or in our household. Which do you think will have the highest melting/boiling point if we are to subject those substances to heating?
What happens to the electron of a metal element in ionic bonding forming a compound?
Which best describes the position of the elements in the Periodic Table and its valence electrons?
Which best describes an anion?
Fluorine belongs to Group 17 or halogens. How many electrons does a Fluorine ion need for it to be stable?
What can be combined with oxygen ions to form an ionic compound?
Which of the following ions is a monoatomic ion?
Which of the following sets of Organic Compounds is viscous or has thick consistency?
I.        Ethyl Alcohol                                                    III. Honey                Â
II.      Liquified Petroleum Gas                                 IV.Motor Oil
As you pour the motor oil into the machine, you notice that the flow is somewhat thick and sticky as compared to water. What property best describes this scenario?
Refer to the structure below. Which group of hydrocarbons is being shown?
Methane is also known as biogas. What is the use of this compound?
What is the difference between a molecular unit from a formula unit?
Which branch of Chemistry deals with Carbon compounds?
The possible values of an electron's spin quantum number are
The __________ quantum number defines the shape of an orbital.
A vertical column in the periodic table is called a:
What is the main goal of an element to bond with other elements and form a compound?
Which model involves electron positions in probable locations around a central nucleus?
It is the region of space around the nucleus where the electron is most probable to be observed.
Complete the statement: In the quantum mechanical model ofthe atom, within the orbital is where ________?
In covalent bonding, electrons are shared between atoms or elements to attain stability. What do you call the particle/substance produced with a covalent bond?
Which is the main reason why electron(s) of metal elements tend to transfer completely to non-metal elements?
Which of the following statements is INCORRECT about cation?
Dots in LEDS represent the valence electrons in an atom. How many dots are there in the LEDS of a carbon atom which belongs to group or family 14 ?
What do you think is the reason why Carbon is called as a tetravalent atom?
What do you think is the reason why smoking is not allowed in the vicinity of a gasoline station?
Organic compounds can be used to prevent pests and other insects. Which of the following Organic Compounds is used as an insecticide?
Which of the following organic products can be used in disinfecting your hands against viruses and other foreign elements?
Which of the following statements suits the description of the covalent compounds?
Which of the following is a correct property of an ionic compound?
If the atomic number of Fluorine is 9, what is the charge of Fluoride if it has 10 electrons?
Which of the following ions loses 2 electrons?
