Which element would have the lowest electronegativity? (1 point)

Question

Responses

an element with a large number of valence electrons and a large atomic radius
an element with a large number of valence electrons and a large atomic radius

an element with a small 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 small number of valence electrons and a large atomic radius
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 large number of valence electrons and a small atomic radius

Answer 1

The element with the lowest electronegativity would be:

an element with a small number of valence electrons and a large atomic radius.

Elements with a small number of valence electrons (such as those in Group 1) tend to have lower electronegativity because they are more willing to lose electrons rather than gain them. Additionally, a large atomic radius means that the valence electrons are further from the nucleus, decreasing the effective nuclear charge felt by those electrons and leading to lower electronegativity.

Answer 2

Which elements on the periodic table are the least reactive? (1 point)
Responses

the group with fluorine at the top
the group with fluorine at the top

the group with helium at the top
the group with helium at the top

the group with hydrogen at the top
the group with hydrogen at the top

the group with carbon at the top

Answer 3

The correct response for the least reactive elements on the periodic table is:

the group with helium at the top.

Helium is a noble gas, and noble gases (Group 18) are known for their low reactivity due to having a complete valence electron shell. This makes them very stable and unlikely to engage in chemical reactions.

Answer 4

How are reactivity and electronegativity related?(1 point)
Responses

Elements with higher electronegativity are more reactive than elements with lower 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.
An element will be less reactive if it has a very high or very low electronegativity.

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

Elements with lower electronegativity are more reactive than elements with higher electronegativity.
Elements with lower electronegativity are more reactive than elements with higher electronegativity.

Answer 5

The correct response regarding the relationship between reactivity and electronegativity is:

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

This is because elements with very high electronegativity (like fluorine) tend to readily attract electrons, making them very reactive, especially with elements that have lower electronegativity (such as alkali metals, which easily lose electrons). Conversely, elements with very low electronegativity (like alkali metals) are also very reactive because they readily lose their valence electrons.

Answer 6

Which element listed would have the greatest electronegativity?

An illustration shows the periodic table of elements.

(1 point)
Responses

lithium
lithium

fluorine
fluorine

carbon
carbon

boron
boron

Answer 7

The element listed that would have the greatest electronegativity is:

fluorine.

Fluorine is known to be the most electronegative element in the periodic table, with an electronegativity value of approximately 4.0 on the Pauling scale, making it highly effective at attracting electrons in chemical bonds.

Answer 8

Which elements would react most easily with each other? (1 point)
Responses

an element with a high electronegativity and a second element with a high electronegativity
an element with a high electronegativity and a second element with a high electronegativity

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

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 a full shell of electrons

an element with a high electronegativity and an element with low reactivity

Answer 9

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 combination is likely to result in a reaction because the element with the high electronegativity (such as a nonmetal) would attract the single valence electron from the other element (such as an alkali metal), leading to the formation of a bond. The high electronegativity indicates that the first element is very effective at gaining electrons, while the second element's single valence electron makes it eager to lose that electron and achieve a stable configuration.