Which subatomic particle plays the greatest role in determining the physical and chemical properties of an element?
The electron.
100
What type of element is calcium? And what is it's period and group numbers?
Alkaline earth metal, period 4, group 2
100
What is a positively charged ion?
Cation
100
Which sublevel corresponds to the transition metals in the periodic table?
The "d" sublevel.
100
What is an element in Group 2A?
Alkaline earth metal.
200
The representative elements are... A) Inner transition metals. B) Transition metals. C) Group B elements. D) Group A elements.
D) Group A elements.
200
The alkali metals do NOT include... A) Li. B) Ca. C) Na. D) Rb.
B) Ca.
200
Which of the following atoms would you expect to have the largest atomic radius? A) I. B) K. C) Ca. D) Rb.
D) Rb.
200
What is a good conductor of heat and electric current?
A metal.
200
What is an element whose highest occupied "s" sublevel and a nearby "f" sublevel contain electrons?
Inner transition metals.
300
In the periodic table, there is a periodic pattern in the physical and chemical properties of elements when they are arranged in order of...
Increasing atomic number.
300
The category of elements that is characterized by the filling of "f" orbitals is the...
Inner transition metals.
300
Atomic size generally... A) Increases from left to right across a period. B) Decreases from top to bottom within a group. C) Remains constant within a period. D) Decreases from left to right across a period.
D) Decreases from left to right across a period.
300
What group has elements whose highest occupied "s" sublevel and a nearby "d" sublevel contain electrons?
Transition metals.
300
What type of elements generally form cations?
Metals.
400
The element iodine, I, is a... A) Period 5 alkali metal. B) Period 4 halogen. C) Period 5 halogen. D) Period 5 transition metal.
C) Period 5 halogen.
400
Why does atomic size tend to decrease as you move across a period?
Because the protons attract the electrons towards the center making them smaller.
400
What is any nonmetal in Group 7A?
Halogens.
400
How is atomic size measured?
Atomic radius
500
What group has elements whose highest occupied "s" or "p" sublevels are partially filled?
Representative elements.
500
Which of the following elements is a metalloid? A) As. B) Se. C) Br. D) Kr.
A) As.
500
Why does atomic size tend to increase when you move down a group?
Because extra shells of get added making the atoms bigger.
500
What is an element in which the highest occupied "s" and "p" sublevels are filled?
Noble gases.
500
All of the following are true about ions EXCEPT... A) positive ions are called cations. B) negative ions are called anions. C) cations are larger than anions. D) anions are larger than cations.