Chem ch 6 Test
What is characteristic of the electron configurations of noble gases?
Filled S and P sublevels
Which element has the highest electronegativity value on the periodic table
Fluorine
In the third period which element has the largest atomic radius
Sodium
Where is group A located on the periodic table?
They are located on the top of the periodic table (S and P sublevels)
Anion
negatively charges atom
Cation
positively charged atoms
What is the periodic trend for atomic radius
-increases from top to bottom -increases from right to left
Ion
when atoms gain or lose elecrons
What is the periodic trend for elecrtronegativity
-increases from top to bottom -increases from left to right
Who was the first scientist to arrange the elements according to similar chemical and physical properties in order of increasing atomic mass?
Dmitri Mendeleev
Which element would have a smaller first ionization energy and why
Lithium
Where are the metals, nonmetals, metalloids, and transition metals located on the periodic table
-The metals are located on the left of the table -Nonmetals are on the right -metalloids are along the line starting at aluminum -Transition metals: located in the d and f sublevels
How do the relative sizes of a cation and an anion compare to its neutral atom
-cations smaller because they lose electrons -anions bigger because the gain electrons
What is the periodic trend for ionic radius
-increase from top to bottom -increases from right to left. Cations and Anions increase from right to left
What is the periodic trend for ionization energy
-increases from bottom to top -increases from left to right
As you move from left to right across the second period of the periodic table how does atomic radius increase
decrease
Which subatomic particle plays the greatest role in determining the properties of an element
electrons
What causes the shielding effect to remain constant across a period
electrons are added to the same principle energy level
Another name for the representative elements is
group A
As you move from left to right across the second period of the periodic table how does electronegativity increase
increase
As you move from left to right across the second period of the periodic table how does the atomic mass increase
increase
As you move from left to right across the second period of the periodic tale how does ionization energy increase
increase
What element has this electron configuration 1s22s22p63s23p4
sulfur
The atomic number of an element indicates
the number of protons in an atomic nucleus