- valence electrons and group
- Reactivity decreases down a group, and electronegativity increases down a group.
- Electronegativity decreases down a group, and reactivity increases down a group.
- The number of valence electrons increases from left to right.
- Cs
correct answer only
Question 1
A)Which characteristics determine an element’s reactivity?(1 point)
Responses
valence electrons and electronegativity
valence electrons and electronegativity
electronegativity and period
electronegativity and period
valence electrons and group
valence electrons and group
group and period
group and period
Question 2
A)Which option correctly describes the pattern of reactivity and electronegativity in nonmetals?(1 point)
Responses
Reactivity decreases down a group, and electronegativity increases down a group.
Reactivity decreases down a group, and electronegativity increases down a group.
Both reactivity and electronegativity decrease down a group.
Both reactivity and electronegativity decrease 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 up a group.
Both reactivity and electronegativity decrease up a group.
Question 3
A)Which option correctly describes the pattern of electronegativity and reactivity in metals?(1 point)
Responses
Electronegativity decreases down a group, and reactivity increases down a group.
Electronegativity decreases down a group, and reactivity increases down a group.
Both electronegativity and reactivity increase down a group.
Both electronegativity and reactivity increase down a group.
Both electronegativity and reactivity decrease down a group.
Both electronegativity and reactivity decrease down a group.
Electronegativity increases down a group, and reactivity decreases down a group.
Electronegativity increases down a group, and reactivity decreases 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 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 right to left.
The number of valence electrons increases from right to left.
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
1 answer
1 answer