True or False? Early chemist used the properties of elements to sort them into groups.
What is True
100
True or false? The periodic table displays the symbols and names of the elements, along with information about the structure of their atoms.
What is True
100
True or false? In general, atomic size increases from top to bottom within a group and decreases from left to right across a period.
What is True.
100
Define Period, and Group.
What is period- Horizontal Row, Group- Vertical Column.
100
Define halogens
What is any of a group of five chemically related nonmetallic elements.
200
Mendeleev arranged the elements in his periodic table in order of ..........
What is increasing atomic mass.
200
Elements can be sorted into....
What is noble gases, representative elements, transition metals, or inner transition metals based on their electron configurations
200
Fill in the blank. ( ) and ( ) ions form when electrons are transferred between atoms.
What is Positive and Negative.
200
Define Alkali Metal.
What is Any of a group of soft, white, low-density, low-melting, highly reactive metallic elements.
200
Define Electronegativity
What is the tendency of an atom or radical to attract electrons in the formation of an ionic bond.
300
In the modern periodic table, elements are arranged in order of .......
What is increasing atomic number.
300
The noble gases are the elements in Group.....
What is 8A of the periodic table.
300
First ionization energy tends to decrease from top to bottom within a group and increase from left to right across a period. True or False?
What is True.
300
Define alkaline earth metals.
What is any of a group of metallic elements.
300
Define lanthanoid
What is any element of the lanthanide series (atomic numbers 57 through 71).
400
Define mordern periodic law
What is when the elements are arranged in order of increasing atomic number, there is a periodic repetition of their physical and chemical properties.
400
Groups 1A through 7A are often referred to as.....
What is representative elements.
400
Cations are always ( ) than the atoms from which they form. Anions are always ( ) than the atoms from which they form.
What is Smaller and Larger.
400
Define nitrogen family.
What is the lightest element of periodic group 5.
400
Define actinoid
What is any of a series of radioactive elements with atomic numbers 89 through 103.
500
Where are the metals, nonmetals, and metaloids located on the periodic table?
What is 80% are metals, upper right corner is nonmetals, and in between metals and nonmetals are the metaloids.
500
Elements in the B groups, which provide a connection between the two sets of representative elements, are referred to as.....
What is transition elements.
500
Define Electronegativity.
What is the ability of an atom of an element to attract electrons when the atom is in a compound.
500
Define Oxygen Family.
What is elements in group 16.
500
Define ionic radius
What is the radius exhibited by an ion in an ionic crystal where the ions are packed together to a point where their outermost electronic orbitals are in contact with each other.