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