Lewis Dot Diagrams
Electron Configuration
Periodic Table Trends
Metals and Nonmetals
Subatomic Particles
100
Draw the Lewis Dot Diagram for potassium.
K, showing 1 valence electron
100
Draw the Bohr Diagram for boron.
2 circles -- inner one has 2 electrons, outer has 3.
100
Which is the largest atom: calcium, fluorine, or aluminum?
Calcium
100
This term means that an element can be shaped into a desired form without breaking.
What is malleable?
100
This subatomic particle orbits the nucleus in energy shells.
What is an electron?
200
Draw the Lewis Dot Diagram for silicon.
Si with 4 valence electrons (top, bottom, left, right)
200
How many energy levels does an atom of tin have?
5
200
Which period has the most occupied energy levels?
Period 7
200
Over half of the elements on the Periodic Table are classified as: a) metals b) nonmetals c) metalloids
a) metals
200
These two subatomic particles add together to give the atomic mass.
What are the protons and neutrons?
300
Draw the Lewis Dot Diagram for iodine
I with 7 valence electrons (top, bottom, left, right with three sets doubled up)
300
What is the name of the family an atom with electron configuration 2-8-8-2 belongs to?
Alkaline Earth Metals
300
What is the name of the family with the most valence electrons?
Noble gases
300
A shiny element bubbles vigorously in acid. This element is most likely a: a) metal b) nonmetal c) metalloid
a) metal
300
A sodium ion has a charge of +1. How many protons does it have?
11
400
Draw two Lewis Dot Diagrams to show why krypton and xenon behave in chemically similar ways.
Kr and Xe both have 8 valence electrons show in their Lewis Dot Diagram
400
Draw two Bohr Diagrams to show why magnesium is larger than beryllium, even though they both have the same number of valence electrons.
Two Bohr diagrams showing that magnesium has an additional energy level (2-8-2) compared to beryllium (2-2)
400
Why is lead larger than silicon?
It has three more shells/energy levels (6 compared to 3)
400
Provide the numbers of 5 different groups that do not contain metalloids.
Possibilities: 1 - 12, 18
400
A sodium ion has a charge of +1. How many electrons does it have?
10
500
Draw three examples of Lewis Dot diagrams that show why Alkali Earth Metals behave in chemically similar ways.
Lewis Dot Diagrams of 3 different elements in group 2, each showing 2 valence electrons
500
Phosphorus gains 3 electrons to form an anion with a charge of -3. What is the electron configuration of this anion?
2-8-8
500
Why is chlorine smaller than sodium?
It has more positively charged protons (17 versus 11) to attract negatively charged electrons in closer.
500
You are given a sample of an unknown nonmetal. Describe three physical or chemical characteristics you would expect to see in the sample.
Three of any of the following: No metallic luster Nonconductive Brittle Does not react with acid
500
Which has more electrons: a sulfur ion with a charge of +4 or a phosphorus ion with a charge of -3? Show the work that justifies your answer.
The phosphorus ion has more (18 electrons) than the sulfur ion (12 electrons)
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