chapter 3 ww
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Scientists at the time thought that all matter was composed of what four substances | earth, watr, air, and fire
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| 4 basic essences | wet, dry, hot, and cold
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| greek word for atom | indivisible
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| How many elements have been identified | 112
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| The physical combination of one type atom with another was visualized as being... | eye-and-hook affair
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| His work resulted in the first periodic tble of the elements | Mendeleev
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| How many groups are in the periodic table | Eight
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| the only difference between atoms of another was their | mass
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| another word for cathode rays | electrons
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| the number of electrons was thought to equal the quantity of positive electrification because the atom was known to be electrically | neutral
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| The smallest subdivision of electromagnetic radiation is an indivdual packet of energy called a | photon or quantum
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| The alteration of the speed of visible light when it encounters transparent matterof varying densities is termed | refraction
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| the number of protons determines the | chemical element
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| with the develpment of high-energy particle accelerator, or ________ ________ as some call them, the structure of the atomic nucleus is slowly being mapped and identified | particle accelerators
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| The 3 primary constituents of an atom or also called the fundamental particles | electon, protons, and neutrons
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| The _______ of electrons around the nucleus determines the manner in hich atoms interact. | arrangement
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| Because an atomic particle is extremely small, its mass is expressed in | atomic mass units (amu)
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| atoms that have the same number of protons but differ in the number of neutrons are | isotopes
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| the number of ______ ultimately determines the chemical behavior of an at |
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| Scientists at the time thought that all matter was composed of what four substances | earth, watr, air, and fire
🗑
|
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| 4 basic essences | wet, dry, hot, and cold
🗑
|
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| greek word for atom | indivisible
🗑
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| How many elements have been identified | 112
🗑
|
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| The physical combination of one type atom with another was visualized as being... | eye-and-hook affair
🗑
|
||||
| His work resulted in the first periodic tble of the elements | Mendeleev
🗑
|
||||
| How many groups are in the periodic table | Eight
🗑
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| the only difference between atoms of another was their | mass
🗑
|
||||
| another word for cathode rays | electrons
🗑
|
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| the number of electrons was thought to equal the quantity of positive electrification because the atom was known to be electrically | neutral
🗑
|
||||
| The smallest subdivision of electromagnetic radiation is an indivdual packet of energy called a | photon or quantum
🗑
|
||||
| The alteration of the speed of visible light when it encounters transparent matterof varying densities is termed | refraction
🗑
|
||||
| the number of protons determines the | chemical element
🗑
|
||||
| with the develpment of high-energy particle accelerator, or ________ ________ as some call them, the structure of the atomic nucleus is slowly being mapped and identified | particle accelerators
🗑
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| The 3 primary constituents of an atom or also called the fundamental particles | electon, protons, and neutrons
🗑
|
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| The _______ of electrons around the nucleus determines the manner in hich atoms interact. | arrangement
🗑
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| Because an atomic particle is extremely small, its mass is expressed in | atomic mass units (amu)
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| atoms that have the same number of protons but differ in the number of neutrons are | isotopes
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| the number of ______ ultimately determines the chemical behavior of an atom | proton
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| the electrical charge of an atom is | zero
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| in their normal state, atoms are electrically ______. (positive, negative, neutral) | neutral
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| Equation of maximum electrons per shell | 2n2
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| the force that keeps an electon in orbit is the | centripetal force
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| emission of particles and energy in order to become stable | radioactivity
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| another name for x-rays and gamma rays | photons
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| Type of radiation including electrons, protons, and even rare neclear fragments if they are in motion and possess sufficient kinetic energy | particulate
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| Who developed the concept of the atom as a miniature solar sysem | niels bohr
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| Atoms of various elements may combine to forms these structures | molecules
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