Chemists use the properties of elements to sort them into _______.
What is Groups
100
The periodic table can be divided into S P D and F _______ that correspond to the highest occupied sub levels in atoms of elements.
What is Blocks
100
In general atomic size _________ from top to bottom with in a group and decreases from left to right.
What is Increases
100
The energy required to remove an electron from an atom in its gaseous state
What is ionization energy
100
How many periods are in a periodic table?
What is 7
200
Mendeleev arranged the elements in his periodic table in order of increasing _______ ______.
What is Atomic Mass
200
The periodic table displays the symbols and names of elements, along with information on the _______ of the atoms.
What is Structure
200
First ionization energy tends to _____ from top to bottom within a group and increases from left to right across a period
What is Decreases
200
The ability of an atom to attract electrons when the atom is in a compound
What is Electronegativity
200
Which is a noble gas:
A. Iron
B. Lithium
C. Helium
D. Gold
What is C. Helium
300
In the modern periodic table, elements are arranged in order of _______ atomic number. The element within a group in the table with have similar properties.
What is Increasing
300
Elements can be sorted into noble gases, representative elements, transition metals, or inner transition metals based on their Electron ______________.
What is Configuration
300
Cations are always ______ than atoms from when they form. Anions are always larger than the atoms from which they from.
What is Smaller
300
An element in the lanthanide or ectinide seriers; the highest occupied subleve; and nearby sublevel of its atoms generally contains electrons (inner transition element)
What is inner transition metals
300
What is the difference between cations and anions?
What is Cations are positive and Anions are negative
400
Three classes of elements are:________ ,______ ,and _______.
What is Metals, Non-metals, metaloids
400
Because they rarely take part in a reaction, noble gases are sometimes referred to as _____ _____.
What is Inert Gases
400
In general electro-negativity values decrease from top to bottom with a group for representative elements, the values tend to increase from _____ to _______ across the period.
What is Left to Right
400
Any atom or group of atoms w/ a positive charge
What is Cation
500
Type of elements tend to be good conductors of heat and electrical current.
What is Metals
500
Copper, Silver, Gold, and Iron are examples of _________ metals.
What is Transition
500
Trends in atomic size, ionization energy, ionic size, and electronegativity can be explained by variations in _____ _______.