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Test Review: Periodic Table & Trends
This is a review for High School Pre-AP chemistry. Feel free to use it to study! Good luck!! :)
Terms in this set (32)
Ability of an atom to attract electrons when the atom is in a compound
the law that states that the repeating chemical and physical properties of elements change periodically with the atomic numbers of the elements
the amount of energy required to remove an electron from an atom
one-half the distance between the nuclei of 2 neutral atoms
the weighted average of the masses of the isotopes of an element
Vertical column of elements in the periodic table
a horizontal row of elements in the periodic table
a positively charged ion
a negatively charged ion
Principal Energy Level
a period; This value determines the size of the corresponding electron cloud
Lewis Dot Structure
the symbol of an element surrounded by an number of dots equal to the number of electrons in the valence shell of the atom
Which element on the periodic table has the highest electronegativity?
Which elements on the periodic table have the lowest electronedativity?
Elements in the same _______ share similar chemical and physical properties because they posses the same # of valence electrons.
Who arranged the periodic table by atomic #?
The atomic radius of anions is _______ than neutral atoms
The atomic radius of cations is _______ than neutral atoms
Electronegativity _________ from Left to right and _________ from top to bottom.
ionic Radii _________ from Left to right and _________ from top to bottom.
Atomic Radii _________ from Left to right and _________ from top to bottom.
Ionization Energy _________ from Left to right and _________ from top to bottom.
Atomic Mass _________ from Left to right and _________ from top to bottom.
increases to highest point in middle then decreases; increases
Melting Point _________ from Left to right and _________ from top to bottom.
decreases to lowest point in middle then increases ; increases
Reactivity in metals _________ from Left to right and _________ from top to bottom.
Reactivity in nonmetals (excluding noble gases) _________ from Left to right and _________ from top to bottom.
The noble gases are the ______ reactive elements on the periodic table.
Atomic Mass Trend
Reason: increases as more protons and neutrons are added.
Atomic Radii Trend
Periods: The effect of the increasing nuclear charge on electrons is to pull them closer to the nucleus. Therefore atomic radii decreases. Groups: Principal energy levels are increasing.
Ionization Energy Trend
Periods: Greater the attraction of the nucleus for the electron leads to increase in ionization energy; Groups:Attractive forces are less, therefore outermost electron is more easily removed
Periods: the octet rule
Corresponds with the trends of atomic mass and atomic radii
melting point Trend
States of matter
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