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Transcript of Atomic Theory and the Periodicity. $200 $400 $600 $800 $1000 $200 $400 $600 $800 $1000 $200 $400...
Atomic Theory and the Periodicity
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History Particles Periodicity ConfigurationsAnything
Goes
Answer: Democritus
200
Who first developed a philosophical idea about “atomos?”
Back
400
Answer: Hard, indivisible spheresBack
What did Dalton think the atom was like?
600
Answer: Gold-Foil experimentBack
What experiment did Rutherford perform to discover the nucleus of the atom?
800
Answer: BohrBack
Who used bright-line spectra to make his discovery about the atom?
1000
Answer: see board and SchrodingerBack
Draw a model of the atom that includes one “s” orbital and 2 “p” orbitals, and who developed this model?
200
Answer: protons and neutronsBack
What two subatomic particles are located in the nucleus?
400
Answer: protons and electronsBack
Which two subatomic particles must be the same in number for an atom to be neutral?
600
Answer: 1 neutronBack
What accounts for the difference in mass numbers if two isotopes of an element have mass numbers of 34 and 35?
800
Answer: 15 protons, 15 electrons, and 17 neutrons
Back
How many of each subatomic particles are present in an atom of phosphorus-32?
1000
Answer: 56.5 amuBack
If a fictitious element (fullerium) has the following two isotopes, what is the average atomic mass of the element?75% fullerium-5625% fullerium-58
200
Answer: The Periodic LawBack
What law states that when the elements are placed in increasing atomic number order the physical and chemical properties of the elements repeat periodically?
400
Answer: Left of the zig-zag line with hydrogen and metalloids as exceptions.Back
Where are the metals located on the periodic table? (Be specific and list any exceptions.)
600
Answer: Ionization energy or electronegativity
Back
Name a property of elements that increases as you go left to right across a period on the periodic table.
800
Answer: a) energy required to remove an electron, and b) any element to left or below siliconBack
What is ionization energy and name an element with a lower ionization energy than silicon?
1000
Answer: increasing shielding and increased energy levels for valence electrons decreases electron attraction to nucleus
Back
Explain why electronegativity decreases as you move down a family on the periodic table.
200
Answer: 5Back
How many different “d” orbitals are in any one energy level?
400
Answer: oxygenBack
What element does the following electron configuration represent?
1s22s22p4
600
Answer: 1s22s22p63s23p64s23d5Back
Write the electron configuration for manganese.
800
Answer: 2 and 5sBack
How many valence electrons does an atom of strontium have and in which orbital are those valence electrons?
1000
Answer:Back
Draw the orbital diagram for promethium.
1s __2s __ 2p __ __ __3s __ 3p __ __ __ 3d __ __ __ __ __4s __ 4p __ __ __ 4d __ __ __ __ __ 4f __ __ __ __ __ __ __5s __ 5p __ __ __ 5d __ __ __ __ __ 5f __ __ __ __ __ __ __6s __
200
Answer: protonBack
Which subatomic particle identifies an element?
400
Answer: many answersBack
Name on Republican and one Democratic candidate running for president.
600
Answer: a photon is releasedBack
What happens when an electron moves an excited state to the ground state?
800
Answer: AustinBack
What is the capital of Texas?
1000
Answer: Francis Scott KeyBack
Who wrote the lyrics to “The Star Spangled Banner?”