Development of the Periodic Table
Periodic Trends
Electron Configurations
Valence Electrons
Octet Rule
100
This is the scientist who most notably attempted to organize elements in a systematic way.
Who is Mendeleev
100
Atomic mass and number increase as you?
What is move left to right along a period and up to down along a family?
100
What is the electron configuration of Helium?
What is 1s2
100
The number of valence electrons for sodium.
What is 1?
100
What is the octet rule?
What is all atoms want to reach a valence configuration of 8 electrons?
200
Mendeleev discovered that elements in the same family share this type of property.
What is a chemical property? (Will accept reactivity, but it's not the best)
200
Reactivity does what as you move down a family of the periodic table?
What is increase?
200
What is the electron configuration of phosphorous?
What is 1s2 2s2 2p6 3s2 3p3
200
The number of valence electrons for oxygen.
What is 6?
200
How does the octet rule determine chemical behaviour?
What is elements will give up or accept electrons (i.e. react) in order to reach a stable octet in their valence orbitals?
300
Mendeleev discovered that elements in periods of the periodic showed trends in this?
What are physical properties?
300
Atomic radius does what as you move down a family of the periodic table?
What is increase?
300
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4
What is selenium?
300
The number of valence electrons for krypton.
What is 8?
300
How many electrons will flourine add/give up to reach a stable octet? And which will it do, add or give up?
What is add 1?
400
Arranging the element cards allowed Mendeleev to predict what?
What are the properties of unknown/undiscovered elements?
400
Atomic radius does what as you move left to right along a period of the periodic table?
What is decrease?
400
1s2 2s2 2p6 3s1
What is sodium?
400
The number of valence electrons for copper?
What is 2?
400
How many electrons will magnesium add/give up to reach a stable octet? Which will it be, add or give up?
What is give up 2?
500
Mendeleev's first name was?
What is Dmitri?
500
Why does the atomic radius not increase as you move left to right along a period of the periodic table?
What is the electrons are being added to the same energy level, while at the same time protons are being added to the nucleus, increasing the attraction.
500
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p1
What is indium?
500
Give the most reactive of the three: aluminum, nitrogen, potassium.
What is potassium?
500
What is the electron configuration of a sodium ion?
What is 1s2 2s2 2p6, the same as neon?
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