Terms
A horizontal row of elements on the periodic table
What is a period?
What is the trend in atomic radius from left to right and top to bottom on the periodic table?
Radius decreases left to right and increases top to bottom
The set of all Group A elements.
What are representative elements?
The element with the electron configuration 1s22s22p63s23p4.
What is sulfur?
This type of particle forms when an atom loses an electron
What is a cation?
He arranged the elements by increasing atomic mass and predicted the properties of undiscovered elements
Who is Mendeleev?
A vertical column of elements in the periodic table
What is a group?
What is the trend in ionization energy from left to right and top to bottom on the periodic table?
IE increases left to right and decreases top to bottom.
What are transition metals?
The number of d electrons in an atom of iron.
What is 6?
Of the following, which is a nonmetal?
Zn, Li, As, Br
Br
What is the atomic number?
One-half the distance between the nuclei of two identical atoms that are bonded together
What is atomic radius?
What is the trend in electronegativity from left to right and from top to bottom on the periodic table?
EN increases left to right and decreases top to bottom
Barium belongs to the group of elements that go by this name
What are alkaline earth metals?
The number of electrons in a calcium ion (Ca2+)
What is 18?
The radius of an anion is _____ than the radius of its parent atom.
What is larger?
The energy required to remove an electron from an atom
What is ionization energy?
When electrons are added to the same principal energy level, how is shielding affected?
a. increases
b. remains constant
c. decreases
b. remains constant
The charge on ions formed from Group 2A atoms
What is +2?
What is 3?
The subatomic particle that determines an element's properties
What is the electron?
What is the factor that contributes most to the decrease in ionization energy from top to bottom?
Increase in atomic size
A repetition of properties occurs when elements are arranged by increasing atomic number
Place the following elements in order of increasing atomic radius:
K, F, Al, S
F, S, Al, K
This group or family of elements has outer s and p sublevels that are completely full
What are noble gases?
The Groups of elements on the periodic table characterized by the filling of p sublevels
What are Groups 3A through 8A?
Metals usually do this when they form ions
What is lose electrons?
The "property" that contributes the most to the change in atomic radius from top to bottom down a group of elements
What is shielding?