Atoms& Periodic T
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| 3 Subatomic Particle | Protons,Neutrons, and Electrons
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| Location for protons | In the Nucleus
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| Location for Neutrons | In the Nuclues
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| Location for Electrons | Outside of the Nucleus
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| Protons Charge | Positive
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| Neutrons Charge | No charge
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| Electrons Charge | Negative
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| Protons, neutrons, and electrons mass | Protons- 1 amu neutrons-1amu electrons- very small small
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| Why do Electrons form a cloud ? | They Never stay in one spot, move everywhere quickly
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| What is the Atomic number of an atom? | The number of protons in the nucleus
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| what is the atomic mass in an atom | The total number of protons and neutrons in the nuclues
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| How do we figure out the number of electrons in an atom | electrons- same as atomic # Protons-atomic # Neutrons- atomic # minus atomic mass
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| Why do we measure the atomic mass of an atom in amu? what does amu stand for? | atomic mass unit. to small to measure with everyday untis
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| how many electrons does it take to equal the mass of one proton? | 2,000
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| What are the Valence Electrons | Electrons most loosely held outside of the shell
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| how many valence electrons can fit in the 1st 2nd and 3rd energy levels of an atom? | 1st shell-2second shell- 8 and 3rd shell- 8
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| Which Model of the atom was the first one? | Dalton
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| which model of the atom came next | Thompson
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| Which model was the first to have a nucleus | Nagaoka
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| Which model of the atom showed electrons in energy levels surronding the nucleus | Bohr
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| Which model showed electrons moving arounds the nucleus so fast its impossible to determine where the electron is at any given time? | Modern Model
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| Many Properties of the atom and therefore the element depend on the number of _____ it has. | Valence Electrons
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| Electron dot structures show only the _____ electrons in an atom | Valence
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| Can be observed with out changing the substance into something else | Physical Properties
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| Can only be observed when a substance interacts with another substance | Chemical Properties
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| How did Mendeleev arrange the elements on the periodic table | Increasing the Atomic Number
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| Which has more properties in common, elements in a group or elements in a period | Group/ Family
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| How is helium different than the other elements in group 18? | Has only 2 valence electrons
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| Most on the elements on the periodic table are___ which are located to the __ of the zig-zag line. The _____ are located to the right of the zig-zag line. Right along the Zig-Zag line are the ______ which have properties of both metals and non metals | Metals, Left. Nonmentals, Right. Metalloids
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| 5 properties of Metals | Give up Electrons in Chemical Reaction Malleable cluctile good conducter of heat and electricty some attracted to magnets
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| 5 properties of Non Metals | Dull, not shiny crumble easily not good conducters of heat,& electricity Not attracted to Magnets Share or gain Electrons
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