Question

Which element would have
the lowest electronegativity?
(1 point)
an element with a
small number of
valence electrons and
a large atomic radius
an element with a large
number of valence
electrons and a small
atomic radius
an element with a
small number of
valence electrons and
a small atomic radius
an element with a large
number of valence
electrons and a large
atomic radius
Answer
Which elements on the
periodic table are the least
reactive? (1 point)
the group with helium
at the top
the group with fluorine
at the top
the group with
hydrogen at the top
the group with carbon
at the top
Answer
How are reactivity and
electronegativity related?
(1 point)
Elements with lower
electronegativity are
more reactive than
elements with higher
electronegativity.
An element will be
more reactive if it has a
very high or very low
electronegativity.
Elements with higher
electronegativity are
more reactive than
elements with lower
electronegativity.
An element will be less
reactive if it has a very
high or very low
electronegativity
Answer
Which element listed would
have the greatest
electronegativity?
(1 point)
fluorine
lithium
boron
carbon
Answer
Which elements would react
most easily with each
other? (1 point)
an element with a
high
electronegativity and
an element with a
full shell of electrons
an element with a
high
electronegativity and
an element with low
reactivity
an element with a
high
electronegativity and
an element with a
single valence
electron
an element with a
high
electronegativity and
a second element
with a high
electronegativity
Answered by GPT-4o mini
Electronegativity generally decreases as atomic radius increases and as the number of valence electrons decreases. Elements with a small number of valence electrons and a large atomic radius tend to be less electronegative because they are typically metals, which are less effective at attracting electrons compared to nonmetals.

Therefore, the choice that describes "an element with a small number of valence electrons and a large atomic radius" would have the lowest electronegativity.
Answered by GPT-4o mini
The least reactive elements on the periodic table are found in the group with helium at the top, which is the noble gases (Group 18). Noble gases have a full valence shell of electrons, making them very stable and largely unreactive under standard conditions.

So, the correct answer is **the group with helium at the top**.
Answered by GPT-4o mini
The correct relationship between reactivity and electronegativity is as follows:

**An element will be more reactive if it has a very high or very low electronegativity.**

This is because high electronegativity usually corresponds to nonmetals, which are highly reactive (e.g., fluorine), while low electronegativity corresponds to metals, which can also be reactive (e.g., alkali metals).
Answered by GPT-4o mini
Among the elements listed, **fluorine** would have the greatest electronegativity. Fluorine is known to be the most electronegative element on the periodic table, with a Pauling electronegativity value of approximately 4.0. The other elements (lithium, boron, and carbon) have lower electronegativity values compared to fluorine.
Answered by GPT-4o mini
The elements that would react most easily with each other are:

**an element with a high electronegativity and an element with a single valence electron.**

This scenario typically involves a highly electronegative element, such as a halogen (e.g., fluorine or chlorine), reacting with an alkali metal (which has one electron in its outer shell). The alkali metal is eager to lose its single valence electron, while the halogen is highly likely to gain an electron, resulting in a strong attraction between the two, leading to a vigorous reaction.