Question 1

Question

A)Which characteristics determine an element’s reactivity?(1 point)
Responses

valence electrons and group
valence electrons and group

valence electrons and electronegativity
valence electrons and electronegativity

group and period
group and period

electronegativity and period
electronegativity and period
Question 2
A)Which option correctly describes the pattern of reactivity and electronegativity in nonmetals?(1 point)
Responses

Both reactivity and electronegativity decrease up a group.
Both reactivity and electronegativity decrease up a group.

Reactivity decreases down a group, and electronegativity increases down a group.
Reactivity decreases down a group, and electronegativity increases down a group.

Reactivity increases down a group, and electronegativity decreases down a group.
Reactivity increases down a group, and electronegativity decreases down a group.

Both reactivity and electronegativity decrease down a group.
Both reactivity and electronegativity decrease down a group.
Question 3
A)Which option correctly describes the pattern of electronegativity and reactivity in metals?(1 point)
Responses

Electronegativity increases down a group, and reactivity decreases down a group.
Electronegativity increases down a group, and reactivity decreases down a group.

Both electronegativity and reactivity decrease down a group.
Both electronegativity and reactivity decrease down a group.

Both electronegativity and reactivity increase down a group.
Both electronegativity and reactivity increase down a group.

Electronegativity decreases down a group, and reactivity increases down a group.
Electronegativity decreases down a group, and reactivity increases down a group.
Question 4
A)Which option correctly describes the pattern of valence electrons on the periodic table?(1 point)
Responses

The number of valence electrons increases from right to left.
The number of valence electrons increases from right to left.

The number of valence electrons increases from top to bottom.
The number of valence electrons increases from top to bottom.

The number of valence electrons increases from left to right.
The number of valence electrons increases from left to right.

The number of valence electrons increases from bottom to top.
The number of valence electrons increases from bottom to top.
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 element in the list is the most reactive?

(1 point)
Responses

Cs
Cs

C
C

Ba
Ba

S

Answer 1

Here are the answers to your questions based on the periodic trends in chemistry:

Question 1 A) Which characteristics determine an element’s reactivity?
Response: valence electrons and group

Question 2 A) Which option correctly describes the pattern of reactivity and electronegativity in nonmetals?
Response: Reactivity decreases down a group, and electronegativity increases down a group.

Question 3 A) Which option correctly describes the pattern of electronegativity and reactivity in metals?
Response: Electronegativity decreases down a group, and reactivity increases down a group.

Question 4 A) Which option correctly describes the pattern of valence electrons on the periodic table?
Response: The number of valence electrons increases from left to right.

Question 5 A) Which element in the list is the most reactive?
Response: Cs (Cesium)

If you have any more questions or need further clarification on any of these topics, feel free to ask!