Properties of Elements
Classifying the Elements
Periodic Trends
100
What is periodic law?
When elements are arranged in order of increasing atomic number.
100
Name a noble gas.
Oxygen, ect.
100
What is ionization energy?
The energy required to remove an electron from an atom.
200
What are nonmetals?
Are poor conductors of heat abd electric current.
200
What information can be found on the periodic table?
Periodic displays the symbols and names of the elements along with information about the structure.
200
What is cation?
An ion with a positive charge.
300
What property did Mendeleev use to organize his periodic table.
Increasing atomic mass.
300
Why do elements potassium and sodium have similar chemical properties?
Because they are in the same group.
300
What is an anion?
An ion with a negative.
400
How are elements arranged in Modern Periodic Table?
Elements are arranged in order of increasing atomic number.
400
What block are noble gases found in?
P Block
400
In general, how can the periodic trends displayed by elements be explained?
In general, electronegativity values decrease from top to bottom within a group. For representative elements, the values tend to increase from left to right across the a period.
500
Name the three broad classes of elements.
3 Classes of elements are Metals, Non-Metals, and Metalloids.
500
Name a transition metal.
Copper, silver, gold, iron
500
Compare the size of ions to the size of atoms from which they form.
First ionzation energy tends to decrease from top to bottom within a group and increase from left to right across a period
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