Which elements on the periodic table are the least reactive?

Question

Responses:
the group with hydrogen at the top
the group with helium at the top
the group with fluorine at the top
the group with carbon at the top

Answer 1

The elements on the periodic table that are the least reactive are found in the group with helium at the top. This group is known as the noble gases, which include helium, neon, argon, krypton, xenon, and radon. Noble gases are characterized by their full valence electron shells, making them very stable and unreactive under standard conditions.

So, the correct response is: the group with helium at the top.

Answer 2

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.

Answer 3

The correct response is: An element will be more reactive if it has a very high or very low electronegativity.

This statement reflects the nature of reactivity in relation to electronegativity. Elements with very low electronegativity (such as alkali metals) tend to lose electrons easily and are highly reactive. On the other hand, elements with very high electronegativity (such as halogens) tend to gain electrons readily, making them reactive as well. Thus, both extremes of electronegativity are associated with high reactivity.

Answer 4

Which elements would react most easily with each other?
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 a full shell of electrons
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

Answer 5

The correct response is: an element with a high electronegativity and an element with a single valence electron.

In this scenario, an element with high electronegativity (such as a halogen) will strongly attract the single valence electron from an element that has a single valence electron (such as an alkali metal). This type of interaction typically leads to the formation of ionic bonds, resulting in strong reactivity between the two elements.