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Unit 3 Periodic Tren

Unit 3 Periodic Trends

QuestionAnswer
What is the positive particle located in the atom’s nucleus? proton
What is the negative particle located in the atom’s orbitals? electron
What is the neutral particle located in the atom’s nucleus? neutron
What are the outermost electrons? valence electrons
What is the center core of the atom? nucleus
Which atom is most reactive, the atom with one valence electron or the atom with 8 valence electrons? 1
What do valence electrons do (what is their role)? create chemical bonds
How do you calculate protons? atomic number
How do you calculate neutrons? atomic mass - atomic number
Identify the following as a metal, nonmetal or metalloid….Be? metal
Identify the following as a metal, nonmetal or metalloid….Si? metalloid
Identify the following as a metal, nonmetal or metalloid….Al? metal
Identify the following as a metal, nonmetal or metalloid….Ne? nonmetal
Identify the following as a metal, nonmetal or metalloid….K? metal
Identify the following as a metal, nonmetal or metalloid….O? nonmetal
Identify the group and period for N. Group 15 Period 2
Identify the group and period for Mg. Group 2 Period 3
How many valence electrons would be found in Si. 4
Predict the number of valence electrons found in F. 7
Which would be more reactive…K or Ar? K
Which would be more stable…Ne or Li? Ne
Which group of the periodic table is the most reactive? Why? Group 1 - only 1 valence electron
Which group of the periodic table is the most stable? Why? Group 18 - all 8 valence electrons
Which group of the periodic table is the least reactive? Why? Group 18 - all 8 valence electrons
Which group of the periodic table is least stable? Why? Group 1- only 1 valence electron
What is the name of the elements found in group 18? Noble Gases
What is the name of the elements found in group 2? Alkaline Earth Metals
What is the name of the elements found in group 3-12? Transition
What is the name of the elements found in group 1? Alkali Metals
What is the formula for density? mass/volume
A metal cube has a mass of 325 grams and a volume of 25ml. What is the density of the cube? 13 g/ml
Created by: lschramme
 

 



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