Scientists
Models
Atomic Theory
The Periodic Table
Light
Vocab
Scientists Atomic Theory The Periodic Table Models Light Vocab $100 $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500 $500
Name the scientists in chronological order.
Dalton,Thomson, Rutherford, Chadwick, and Bohr
Who used gold foil to discover the nucleus?
Rutherford
Which scientists used this experiment?
Thomson
He suspected that the emission spectrum provided info about the structure of atoms
Bohr
Video daily double!
http://www. youtube. com/watch. v=gO9CKkbLUiIhttp://www. youtube http://www.youtube.com/watch?v=gO9CKkbLUiIhttp://www.youtube.com/watch?v=gO9CKkbLUiI What did Rutherford find was causing the deflections of alpha particles? Why did most of the alpha particles go straight through the atom?
The very small, dense, positively charged nucleus The very small, dense, positively charged nucleus. Most of the alpha particles went through b/c the electron cloud is mostly empty space Like a marble in a football field.
Who’s model is the solid sphere?
Dalton
Name the model which has a nucleus surrounded by electrons on an orbit.
Bohr's planetary model
Name the model that resembles choc chip cookie dough.
Thomson's Plum Pudding model
Who developed the “nuclear” model?
Rutherford
What is an electron cloud?
A region where electrons may exist. It has no definite borders.
Chadwick discovered which heavy particle in the atom.
The neutron
One of Dalton’s Principles incorrectly stated that atoms of a given element are identical. Why is this incorrect? Give 2 reasons.
Because isotopes have a different # of neutrons have different properties. Ions of a given element have a different # of electrons and have different properties.
Dalton's theory that atoms combine in simple whole-number ratios, was based on this law…
The Law of Definite Proportions
The law that states that atoms merely rearrange in chemical reactions…
The Law of Conservation of Mass
Which law indicates that generic acetaminophen is the same as Tylenol
The Law of Definite Proportions
Look at the periodic table Look at the periodic table. What does the whole number in each block represent? (two answers)
The number of protons/ atomic number
When an ion has a -1 charge, it has one less________.
proton
What is the number of protons, neutrons, and electrons in a bromine-80 ion with a negative charge?
35 p, 45 n, 36 e
Based on the periodic table, the most abundant isotope of magnesium is the magnesium- _?__ atom.
The magnesium-24 atom b/c the average is closest to 24.
Write the noble gas configuration for chlorine, Cl.
[Ne]3s2 3p5
The creation of the concept of these rings helped us understand how light is emitted.
Bohr’s orbits
Who’s rule says to spread out electrons in orbitals before pairing them up?
Hund’s Rule
Explain how light (or any type of radiation) is given off.
Electrons gain energy and move to the excited state, then return to the ground state and give off that energy as light.
Daily Double!!
What is the visible spectrum?
The very small range of radiation that our eyes see (ROYGBIV)
These are distinct lines of color, unique to each element, that are produced when light is passed through a prism.
The line emission spectrum
What is mass number?
The number of protons and neutrons in the nucleus.
What are the shapes of the s and p orbitals?
spherical and dumbell
What is this type of symbol called (not the element)
The nuclear symbol which tells the specifics of the structure of the isotope
Which particles in the atom have coulombic forces of attraction?
The proton and the electron; opposites attract.
Define characteristic physical properties?
Properties that are unique to each element Properties that are unique to each element. Line emission spectra, density, and boiling point are example.
Double Jeopardy!!
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