History
Who is known as the "Father of the Periodic Table"?
Dmitri Mendeleev
A vertical column on the periodic table is known as a:
family or group
Is Uranium naturally occurring or synthetic?
naturally occurring
Electrons will fill orbitals in order of increasing energy levels (lowest first) is known as:
Aufbau Principle
The distance from the nucleus of an atom to its outermost electron shell is known as:
atomic radius
Who arranged the elements in order of increasing atomic mass?
Dmitri Mendeleev
John Newlands
Lothar Meyer
A horizontal row on the periodic table is known as a:
period or series
Is arsenic a metal, a nonmetal, or a metalloid?
metalloid
Electrons should be placed individually into empty orbitals first before pairing is known as:
Hund's Rule
The energy needed to remove an electron from an atom is called:
ionization energy
Who arranged the elements in order of increasing atomic number?
The elements Na, Mg, Cs & Ra are all found in the ____ block.
s
What state of matter is bromine typically in at room temperature?
liquid
Two electrons that are in the same orbital must have opposite spins is known as:
Pauli Exclusion Principle
The attraction an atom has for electrons in a covalent bond is known as:
electronegativity
Who arranged the elements by mass and noticed similarities every 8th element (Law of Octaves)?
John Newlands
The elements Pu, Pm, Nd and U are all found in the ____ block.
f
Is aluminum a metal, a nonmetal, or a metalloid?
What element has its last electron in the 3s¹ position?
sodium (Na)
Based on the trends discussed, what element should have the largest atomic radius?
Francium
Who arranged the elements in groups of 3 that all had similar properties (known as triads)?
Johann Dobereiner
The elements Xe, In, Lv, and C are all found in the ____ block.
p
Is seaborgium naturally occurring or synthetic?
synthetic
What element has its last electron in the 4d⁵ position?
technetium (Tc)
Based on the trends discussed, what element should have the largest electronegativity value?
Fluorine