Subatomic Particles
This subatomic particle has a positive charge.
Proton
The atomic mass is found where on the periodic table?
In the element box
These are the vertical columns on the periodic table.
Groups or families
The staircase of the periodic table signifies which group of elements?
The Metalloids
Halogens are in which group on the periodic table?
17
This subatomic particle has a negative charge.
Electrons
As the period number increases down a group, the number of electron shells increase as well, causing an increase in what? (think trend)
Atomic Radius
These are the horizontal rows on the periodic table.
Periods
These elements are always found left of the staircase on the periodic table.
Metals
These elements are found at the bottom of the periodic table in their own 2 rows. They truly should be in periods 6 & 7.
Lanthanides and Actinides
This subatomic particle has no charge.
Neutron
Which group of elements are the most electronegative, metals or nonmetals?
Non-metals
Group Numbers tell us what about an element?
The number of Valence Electrons.
These elements are always found to the right of the staircase on the periodic table.
Non-metals
Which group are the alkaline earth metals found in?
2
When you add protons and neutrons together you get this value.
Atomic Mass or Mass #
Which element is the most reactive, Lithium or Carbon?
Lithium
Period numbers tell us what about an element?
The number of electron shells.
What classification, metal, nonmetal, or metalloid is the element Ge?
Metalloid
All of the elements in group 1 are alkali metals except for this one.
Hydrogen
Protons tell us what about an atom?
Its identity.
What element has the highest electronegativity value?
Flourine
Why is Helium in group 18?
Even though He only has 2 valence electrons, He has a full valence shell.
What classification, metal, nonmetal, or metalloid, is the element At?
Nonmetal
This classification of elements have 8 valance electrons and are inert, meaning unreactive.
Noble Gases