The trend describing the size of atoms, and in relation to a periodic table, decreases as you move left to right and increases moving top to bottom
What is atomic size?
100
a positively charged atom or group of atoms
What is a cation?
100
The general classification of elements that are good conductors of heat and electric current, almost all of them are solids at room temperature, and they make up a majority of the periodic table.
What are metals?
100
An atom or molecule which has gained or lost one or more of its valence electrons, giving it a net positive or negative electrical charge.
What is an ion?
100
A table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure appear in vertical columns.
What is a periodic table?
200
The trend in which relates to the outer-most electrons' attraction to the nucleus
What is shielding effect?
200
The name of the electrons found in the outermost shell of an atom.
What are valence electrons?
200
The more specific name for metals found in group 1A.
What are alkali metals?
200
The resulting ion of an atom gaining an electron.
What is an anion?
200
When elements on the periodic table are arranged by atomic number, relationships and similarities in properties can be seen
What is periodic law?
300
The energy required to remove the outermost electron in the atom or molecule when the gas atom or molecule is isolated in free space and is in its ground electronic state
What is ionization energy?
300
a negatively charged atom or group of atoms
What is an anion?
300
The classification of the elements in group 8A of the periodic table
What are the noble gases?
300
The resulting cation in a reaction between sodium and chlorine.
What is Sodium?
300
Chemists used these to sort similar element into groups.
What are properties?
400
The periodic trend in which the element Helium is effeted the highest
What is electronegativity?
400
The most reactive metal.
What is francium?
400
7 representative elements that provide a boder line between metals and nonmetals
What are metalloids?
400
The main group on the periodic table in which ions don't have a tendency between positive or negative.
What is group 4A?
400
The term used to describe outermost shell of an atom having all eight valence electrons.
What is an octet?
500
In relation to the periodic table, the trend stays constant moving left to right.
What is shielding?
500
A halogen with its atoms having the second largest atomic size
What is iodine?
500
The more specific name for the nonmetals of group 7A.
What are halogens?
500
The resulting charge of a sodium atom losing one electron.
What is 0?
500
Elements whose highest occupied s or p sublevels are partially filled. They are the elements in groups 1A-7A in the Periodic Table. They display a wide range of physical and chemical properties.