Which element would have the lowest electronegativity? (1 point)
Responses
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
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
Which elements on the periodic table are the least reactive? (1 point)
Responses
the group with hydrogen at the top
the group with carbon at the top
the group with fluorine at the top
the group with helium at the top
the group with helium at the top
How are reactivity and electronegativity related?(1 point)
Responses
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.
An element will be less 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.
Which element listed would have the greatest electronegativity?(1 point)
Responses
carbon
lithium
fluorine
boron
fluorine
Which elements would react most easily with each other? (1 point)
Responses
an element with a high electronegativity and an element with a single valence electron
an element with a high electronegativity and an element with low reactivity
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 full shell of electrons
an element with a high electronegativity and an element with a single valence electron
To determine which element would have the lowest electronegativity, we need to consider the factors that affect electronegativity.
Electronegativity is the tendency of an atom to attract electrons towards itself in a chemical bond. It depends on two main factors:
1. Valence electrons: The number of valence electrons an atom has determines its electronegativity. Valence electrons are the outermost electrons in an atom's electron shell.
2. Atomic radius: The size of an atom, specifically the distance between the nucleus and the outermost electron shell, also plays a role in electronegativity. Generally, larger atoms have a lower electronegativity.
Based on these factors, we can determine that the element with a small number of valence electrons and a large atomic radius would have the lowest electronegativity. This is because atoms with fewer valence electrons have less tendency to attract electrons, and larger atoms have a weaker electrostatic pull on electrons due to their increased distance from the nucleus.
Therefore, the correct answer is:
an element with a small number of valence electrons and a large atomic radius.