Element Families
Which group of elements all have ONE valence electron?
Group 1 or Alkali Metals
Which is more reactive; Li or Be?
Li
Increases
What is a characteristic of a metal?
Shiny, Malleable, Ductile, Conductive
Which side of the table are non-metals located?
Right
What is the name of the furthest group on the right of the table?
Noble Gases
Which group is more reactive; Halogens or Noble Gases?
Halogens
What happens to radius as we go across a period?
Decreases
What is a characteristic of a non-metal?
Brittle, Dull, non-conductive
Where are metalloids located?
Staircase; in between metals and non-metals
Which family does Calcium belong to?
Alkaline Earth Metals
Are elements with fewer or more valence electrons more reactive?
Fewer
Why do radii decrease across a period?
Greater magnetic attraction to nucleus
Which element would be best for conducting heat; S or Ta?
Ta
What is the name for elements in a vertical column?
Group
Name the famililes for the following elements: Cl, Ar, Sr, and Ag.
Halogen, Noble Gases, Alkaline Earth, Transition Metals
What happens to the valence electrons of highly reactive elements?
Given up to a less reactive element, forms a bond
Which element has a wider radius; Fr or Ra?
Name three metalloids.
Boron, germanium, silicon, antimony, arsenic, tellurium and pollanium
Define reactivity and how an elements location determines this.
Reactivity is determined by an elements desire to lose or gain valence electrons. Elements with fewer valence electrons have more 'desire' to complete this.
Which group is most reactive and why?
Alkali metals; one valence electron
Which element is Ca likely to react with? S, Cl, or Kr?
S, 6 valence electrons
Which element with 3 electron orbitals has the smallest radius?
Argon
What are the only elements liquid at room temp?
Br and Hg
What was the fundamental difference between Mendeleev's first periodic table and Moseley's version?
Mendeleev categorized by mass, Moseley by Atomic number.