chapter 3 ww Word Scramble
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| Question | Answer |
| Scientists at the time thought that all matter was composed of what four substances | earth, watr, air, and fire |
| 4 basic essences | wet, dry, hot, and cold |
| greek word for atom | indivisible |
| How many elements have been identified | 112 |
| 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 |
| the only difference between atoms of another was their | mass |
| another word for cathode rays | electrons |
| 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 |
| The 3 primary constituents of an atom or also called the fundamental particles | electon, protons, and neutrons |
| The _______ of electrons around the nucleus determines the manner in hich atoms interact. | arrangement |
| Because an atomic particle is extremely small, its mass is expressed in | atomic mass units (amu) |
| atoms that have the same number of protons but differ in the number of neutrons are | isotopes |
| the number of ______ ultimately determines the chemical behavior of an at | |
| Scientists at the time thought that all matter was composed of what four substances | earth, watr, air, and fire |
| 4 basic essences | wet, dry, hot, and cold |
| greek word for atom | indivisible |
| How many elements have been identified | 112 |
| 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 |
| the only difference between atoms of another was their | mass |
| another word for cathode rays | electrons |
| 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 |
| The 3 primary constituents of an atom or also called the fundamental particles | electon, protons, and neutrons |
| The _______ of electrons around the nucleus determines the manner in hich atoms interact. | arrangement |
| Because an atomic particle is extremely small, its mass is expressed in | atomic mass units (amu) |
| atoms that have the same number of protons but differ in the number of neutrons are | isotopes |
| the number of ______ ultimately determines the chemical behavior of an atom | proton |
| the electrical charge of an atom is | zero |
| in their normal state, atoms are electrically ______. (positive, negative, neutral) | neutral |
| Equation of maximum electrons per shell | 2n2 |
| the force that keeps an electon in orbit is the | centripetal force |
| emission of particles and energy in order to become stable | radioactivity |
| another name for x-rays and gamma rays | photons |
| Type of radiation including electrons, protons, and even rare neclear fragments if they are in motion and possess sufficient kinetic energy | particulate |
| Who developed the concept of the atom as a miniature solar sysem | niels bohr |
| Atoms of various elements may combine to forms these structures | molecules |
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