Periodic Table Organization
What is a horizontal row on the periodic table called?
Period
What is the name of the family of elements that border the Zig-Zag/staircase line?
The Metalloids
What is a valence electron?
An electron in the outermost shell/energy level.
What's the location of the element with the smallest atomic radius?
Top right of the table.
Which element has the lowest energy level (least shells)?
I, Br, Cl
Cl
Each element on the periodic table has a different number of protons. What determines how many protons an atom has?
Atomic Number
What is the name of the family that has the largest atomic radius on the Periodic Table?
The Alkali Metals
What metal family is the most reactive?
Alkali metals (group 1)
Which element is more reactive?
F or I
F
List the following elements by increasing atomic radius
Fe, S, Ca, F
F, S, Fe, Ca
How do you determine the amount of valence electrons an atom has?
Based on the element's group number
The most nonreactive family of the periodic table.
The Noble Gases
Which of the following elements would be the most reactive AND why?
S, Se, O, Te
Which classification of elements are not malleable?
Nonmetals
which atom will be the most reactive based on its valence electrons?
K, Ca, Ga
K because it only has one valence electron
What is the name of the family with 8 valence electrons?
Noble Gases
What is the name of the family that has 2 valence electrons?
The Alkaline Earth Metal Family
What family on the periodic table is not reactive?
The Noble Gases
Which of the following elements is conductive? AND how do you know?
O, F, Cu, Ge
Cu because it's the only metal on the list
Across a period (left to right) atomic radius __________ (increases/decreases).
Down a group atomic radius _________ (increases/decreases)
Across a period atomic radius DECREASES.
Down a group atomic radius INCREASES.
Rank the following elements from smallest atomic radius to largest atomic radius (radius is the size of the atom):
O, B, C, N
O<N<C<B
What is the name of the vertical columns on the periodic table?
Groups
What is the most reactive nonmetal family?
Halogens
How many shells (or energy levels) does Cs have?
6 shells
The staircase on the periodic table is used to separate what 2 classifications?
The staircase separates metals from nonmetals.