Vocabulary
The vertical columns on a periodic table that arrange the elements by the valence electrons
Groups
The most reactive groups
1A and 7A
Shiny and Malleable
Metals
Which element is more reactive? Sodium Or Carbon?
Sodium
I am a metal in group 1 and period 5
Rb
The number of this particle in the nucleus of an atom determines an element’s identity
Protons
The most stable group
Noble Gases
Non Reactive Gases
Noble Gases
Which element has is shiny and malleable? Nitrogen or Magnesium?
Magnesium
I am an element in group 13 and period period 4
Ga
A pure substance composed of the same type of atom throughout
element
The number of what determines an element's reactivity
Valence electrons
Brittle and Dull
Non Metals
Which element is the most stable? Boron or Argon?
Argon
I am the noble gas in period 5
Xe
The ability of a chemical substance to undergo a chemical reaction; influenced by valence electrons
Reactivity
The rule stating that an atom wants to have 8 valence electrons in order to be stable
Rule of 8
Properties of two different element groups
Metalloids
Which element is more reactive? Phosphorous or Calcium?
Calcium
I am an element that shares properties with metals and nonmetals in period 3
Si
The horizontal rows in a periodic table that classify the elements by the number of electron shells/energy levels
Periods
Which group is marked by 1 * on the periodic table, meaning it is not very reactive?
Group 4A
Good conductors of heat and electricity
Metals
Which element is dull and brittle? Sulfur or Potassium?
Sulfur
I am a nonreactive/stable element in period 4
Kr