To achieve full valence electrons, what group of elements will atoms in the first group most likely bond with?(1 point)
Atoms in the first group (Group 1) will most likely bond with atoms in the seventh group (Group 17).
Using the Periodic Table, what mistake did George make in his table?
(1 point)
Responses
The claim that Cr has a +2 charge is incorrect, as elements in group 1 typically have a charge of +1 when they form ions.
The claim that Cr has a +2 charge is incorrect, as elements in group 1 typically have a charge of +1 when they form ions.
The statement about K having a +2 charge is incorrect, as elements in group 1 usually have a charge of +1 when they form ions.
The statement about K having a +2 charge is incorrect, as elements in group 1 usually have a charge of +1 when they form ions.
The claim that Se has a −2 charge is inaccurate, as elements in group 17 typically form ions with a charge of −1.
The claim that Se has a −2 charge is inaccurate, as elements in group 17 typically form ions with a charge of −1.
The statement about Br having a −1 charge is incorrect, as elements in group 1 typically have a charge of +1 when they form ions.
The statement about Br having a −1 charge is incorrect, as elements in group 1 typically have a charge of +1 when they form ions.
The claim that Cr has a +2 charge is incorrect, as elements in group 1 typically have a charge of +1 when they form ions.
What characteristic is true of a positively charged ion?(1 point)
A positively charged ion has fewer electrons than protons.
In chemical reactions metals tend to lose electrons easily. Which of the following statements are supported by the given information in the chart?(1 point)
Responses
On the periodic table the elements with the smaller amount of mass are most likely to be metals.
On the periodic table the elements with the smaller amount of mass are most likely to be metals.
On the periodic table the elements on the left hand side are metals.
On the periodic table the elements on the left hand side are metals.
On the periodic table the elements with the highest atomic numbers are least likely to be metals.
On the periodic table the elements with the highest atomic numbers are least likely to be metals.
On the periodic table the elements on the top are metals.
On the periodic table the elements on the top are metals.
On the periodic table, the elements on the left-hand side are metals.
Which of the following elements reacts most like Chlorine? Why?(1 point)
Responses
Sulfur because they can both gain 2 electrons to form an anion
Sulfur because they can both gain 2 electrons to form an anion
Fluorine because at room temperature they are both gasess
Fluorine because at room temperature they are both gasess
Fluorine because it too has 7 valence electrons
Fluorine because it too has 7 valence electrons
Sulfur because it is located in the same period as Chlorine
Fluorine because it too has 7 valence electrons.
To which chemical family is the unknown element Xx likely to belong, if the element had the following properties?
It reacts with oxygen to form XxO.
It possesses a silver metallic luster.
It has a low melting point.
(1 point)
Responses
Noble Gases
Noble Gases
Alkali Metals
Alkali Metals
Transition Metals
Transition Metals
Alkaline Earth Metals
Alkali Metals
Which two elements exhibit the closest resemblance in terms of their chemical properties?
(1 point)
Responses
Cl and Ar
Cl and Ar
K and Ca
K and Ca
Li and Na
Li and Na
C and N
Li and Na
What is the designation for the elements in Group 1, and what kind of ions do they tend to produce?
(1 point)
Responses
The term used for these elements is alkali metals, and during ion formation, each of them will acquire an electron to achieve a positive charge of +1.
The term used for these elements is alkali metals, and during ion formation, each of them will acquire an electron to achieve a positive charge of +1.
The elements are referred to as alkaline earth metals, and during ion formation, each of them will lose an electron to attain a positive charge of +1.
The elements are referred to as alkaline earth metals, and during ion formation, each of them will lose an electron to attain a positive charge of +1.
The group is known as alkali metals, and they typically generate ions with a positive charge of +1 by losing one electron each during ion formation.
The group is known as alkali metals, and they typically generate ions with a positive charge of +1 by losing one electron each during ion formation.
The elements are known as alkaline earth metals, and during ion formation, each of them will acquire an electron to obtain a negative charge of -1.
The term used for these elements is alkali metals, and during ion formation, each of them will acquire an electron to achieve a positive charge of +1.
The student recognizes that if they put the electrodes into the deionized water, it will not conduct electricity and his circuit will not work. Into which compound could the student mix the water to make their circuit operational?
(1 point)
Responses
The student should mix NaCl (salt) into the water because it is a covalent compound that will dissociate in water, allowing the water to conduct electricity.
The student should mix NaCl (salt) into the water because it is a covalent compound that will dissociate in water, allowing the water to conduct electricity.
The student should mix C6H12O6 (sugar) into the water since it is an ionic compound that will dissociate in water, enabling the water to conduct electricity.
The student should mix C6H12O6 (sugar) into the water since it is an ionic compound that will dissociate in water, enabling the water to conduct electricity.
The student can mix NaCl (salt) into the water since it is an ionic compound that will dissociate in water, enabling the water to conduct electricity.
The student can mix NaCl (salt) into the water since it is an ionic compound that will dissociate in water, enabling the water to conduct electricity.
The student should mix C6H12O6 (sugar) into the water since it is a covalent compound that will not dissociate in water, preventing the water from conducting electricity.
The student can mix NaCl (salt) into the water since it is an ionic compound that will dissociate in water, enabling the water to conduct electricity.
Which compound among the following forms as a result of the formation of an ionic bond?(1 point)
Responses
NO2
NO 2
H2O
H 2 O
CO2
CO 2
NaCl
NaCl