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Question 1

A)Which feature defines a neutral atom?(1 point)
Responses

the number of electrons equal to the number of protons
the number of electrons equal to the number of protons

a low level of reactivity
a low level of reactivity

a full outer electron shell
a full outer electron shell

the ability to change to another substance during a chemical reaction
the ability to change to another substance during a chemical reaction
Question 2
A)What are valence electrons?(1 point)
Responses

electrons that are exchanged between atoms
electrons that are exchanged between atoms

electrons that are shared between atoms
electrons that are shared between atoms

the electrons in an atom’s outermost energy level
the electrons in an atom’s outermost energy level

the electrons surrounding an atom’s nucleus
the electrons surrounding an atom’s nucleus
Question 3
A)Why do atoms exchange or share electrons during bonding?(1 point)
Responses

to obtain a full outer electron shell
to obtain a full outer electron shell

to become neutral
to become neutral

to attract an ion with the opposite charge
to attract an ion with the opposite charge

to have eight inner level electrons
to have eight inner level electrons
Question 4
A)
Use the periodic table to answer the question.

An illustration shows the periodic table of elements. The elements in the periodic table are arranged in groups (columns numbered 1 through 18) and periods (rows numbered 1 through 7) such that the atomic number increases along a period from left to right. The elements are divided into the following categories: · Alkali metals · Alkaline earth metals · Transition metals · Post-transition metals · Lanthanides · Actinides · Metalloids · Nonmetals · Noble gases · Unknown The elements are also classified on the basis of their physical states as follows: · Solid · Liquid · Gas · Unknown The element sulfur is enlarged with the following properties. · Chemical symbol: S · Name: Sulfur · Atomic Number: 16 · Atomic mass: 32.06 · Common oxidation states: 6, 4, 2, negative 2 · Electronegativity: 2.58 · Ionization energies: 999.589 · Electron configuration: [Ne] 3s2 3p4



How many valence electrons are in an atom of the element fluorine?

(1 point)
Responses

five
five

seven
seven

eight
eight

two
two
Question 5
A)
Use the periodic table to answer the question.

An illustration shows the periodic table of elements. The elements in the periodic table are arranged in groups (columns numbered 1 through 18) and periods (rows numbered 1 through 7) such that the atomic number increases along a period from left to right. The elements are divided into the following categories: · Alkali metals · Alkaline earth metals · Transition metals · Post-transition metals · Lanthanides · Actinides · Metalloids · Nonmetals · Noble gases · Unknown The elements are also classified on the basis of their physical states as follows: · Solid · Liquid · Gas · Unknown The element sulfur is enlarged with the following properties. · Chemical symbol: S · Name: Sulfur · Atomic Number: 16 · Atomic mass: 32.06 · Common oxidation states: 6, 4, 2, negative 2 · Electronegativity: 2.58 · Ionization energies: 999.589 · Electron configuration: [Ne] 3s2 3p4



Which change is likely to happen to an atom of the element strontium (Sr) during bonding?

(1 point)
Responses

It will gain electrons, forming a negative ion.
It will gain electrons, forming a negative ion.

It will give up electrons, forming a negative ion.
It will give up electrons, forming a negative ion.

It will give up electrons, forming a positive ion.
It will give up electrons, forming a positive ion.

It will gain electrons, forming a positive ion.

1 answer

Here are the correct responses to each question based on the information provided:

Question 1 A) Which feature defines a neutral atom?
Response: the number of electrons equal to the number of protons

Question 2 A) What are valence electrons?
Response: the electrons in an atom’s outermost energy level

Question 3 A) Why do atoms exchange or share electrons during bonding?
Response: to obtain a full outer electron shell

Question 4 A) How many valence electrons are in an atom of the element fluorine?
Response: seven

Question 5 A) Which change is likely to happen to an atom of the element strontium (Sr) during bonding?
Response: It will give up electrons, forming a positive ion.

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